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Class Information
Number: D23
Name: Environmental heating and cooling; fluid handling and sanitary equipment >
Description: This class provides for design patents claiming ornamental designs for:










Class Number Class Name No. of Patents
D23/200

Fluid handling or treatment equipment

139
D23/213

Dispersal (i.e., sprayer, fogger, nozzle, aerator, etc.) (4)

998
D23/230

Ball and socket joint for adjustment

19
D23/228

Combined

73
D23/223

Hand held or controlled type

712
D23/224

Direct piston or plunger actuation (i.e., without trigger or lever)

5
D23/226

Trigger, lever or button actuation

539
D23/227

Cover or guard

44
D23/225

With material container (6)

348
D23/229

Provision for adjustment of spray pattern or flow

334
D23/222

Simulative

15
D23/214

Sprinkler for lawn, agricultural irrigation or fire extinguishing (5)

295
D23/221

Base

76
D23/216

Oscillating

55
D23/220

Plural rotating arms

13
D23/218

Recessed type

22
D23/215

Simulative

61
D23/219

Tracking type (i.e., sprinkler follows hose, etc.)

8
D23/217

With surface penetration means

28
D23/259

Fitting (10)

169
D23/260

Cap, plug, vent or screen (11)

192
D23/261

Drain guard or strainer (12)

208
D23/262

Coupling or joint

484
D23/265

Clamp or bolt engagement

49
D23/263

Elbow or with flow direction change

139
D23/264

Adjustable (e.g., swivel, etc.)

20
D23/269

Gasket or packing

120
D23/267

Gutter

133
D23/266

Pipe, tubing or hose

203
D23/268

Trap

46
D23/201

Fountain

161
D23/211.1

Gasoline or fuel type can

40
D23/211.2

With elongated neck

15
D23/231

Hand or foot operated pump or well curb

58
D23/232

Reciprocating lever actuated

16
D23/211

Lubricating can

5
D23/202

Storage tank

207
D23/205

Cylindrical

59
D23/206

Element or attachment (1)

89
D23/204

Substantially spherical

11
D23/203

Underground type (e.g., septic tank, etc.)

17
D23/207

Treatment

449
D23/209

Filter or strainer (2)

814
D23/210

Immersion type (e.g., aquarium filter, etc.)

97
D23/208

Sanitary fixture type (e.g., deodorant holder, chemical dispenser, etc.)

208
D23/233

Valve or body therefor

738
D23/236

Ballcock or float type

49
D23/237

Check

26
D23/249

Element or attachment

447
D23/258

Float or check

9
D23/250

Handle

401
D23/252

Offset from axis

744
D23/253

Rim connected to hub by spokes

24
D23/251

Simulative

27
D23/254

With escutcheon

295
D23/255

Spout (9)

846
D23/256

Simulative

32
D23/257

With control for diverter or drain

166
D23/238

Faucet fixture (7)

1302
D23/239

Combined (e.g., with dishwashing brush, support therefor, etc.)

47
D23/240

With soap dish or with provision therefor

5
D23/241

Plural flow controls or provision therefor

502
D23/242

Distinct (i.e., when mounted, controls and spout are separated)

420
D23/243

Pivoting spout

89
D23/244

Gate or butterfly type

37
D23/234

Hydrant

20
D23/245

Manual or visible mechanical control or with provision therefor (e.g., handle, lever, etc.)

182
D23/246

With gauge or dial (8)

10
D23/235

Pressure regulating or relieving

143
D23/248

Symmetrical on one axis

48
D23/247

Symmetrical on two or more axes

17
D23/212

Watering can (3)

71
D23/314

Heating or cooling

151
D23/351

Air conditioner (27)

434
D23/352

Circular housing

12
D23/354

Element, e.g., front panel, etc.

126
D23/353

Window mount type

111
D23/355

Air treatment

168
D23/364

Air cleaner

486
D23/365

Filter

339
D23/359

Dehumidifier

53
D23/366

Deodorizer or ozonizer (28)

1245
D23/369

Activated by moveable cover or by piercing

99
D23/367

Simulative

271
D23/368

With distinct hanger or suction cup

74
D23/370

Fan or ventilator

354
D23/384

Bellows

7
D23/377

Blade unit rotates on vertical axis

723
D23/383

Blower

81
D23/371

Exhaust type

107
D23/372

Range or oven

144
D23/373

Roof or chimney

64
D23/374

Chimney

28
D23/376

Circular hood

13
D23/375

Wind rotated, e.g., turbine type, etc.

9
D23/378

Floor type on vertically elongated stand

146
D23/380

Plural impeller units, e.g., side by side, etc.

35
D23/381

Wire protective grille

117
D23/382

Circular grille

266
D23/379

With exposed blade

413
D23/356

Humidifier

222
D23/358

Element

76
D23/357

Wall or furnace mount

13
D23/360

Vaporizer

103
D23/362

Circular container

13
D23/363

Element

12
D23/361

Wall mount

3
D23/385

Wall or ceiling mount (24)

307
D23/328

Combined heating and cooling or with diverse element

132
D23/318

Domestic water heater or boiler

64
D23/319

Boiler

15
D23/322

Element

24
D23/323

Heat exchange unit, e.g., coil, etc.

56
D23/321

With discharge valve or tap

6
D23/320

With door or access panel

13
D23/386

Element or attachment, not elsewhere specified

260
D23/420

Ash pan or sifter

14
D23/415

Burner or heater coil

40
D23/417

Electric

12
D23/418

Element

18
D23/419

Radiant

11
D23/416

Oil type

13
D23/410

Coal scuttle or wood holder

59
D23/411

Fan element

1091
D23/412

Fan guard

73
D23/413

Fan or ventilator blade

324
D23/414

With circumferential band

8
D23/422

Fire brick

11
D23/403

Fireplace element not elsewhere specified

101
D23/407

Andiron or fire dog

9
D23/408

Simulative

0
D23/409

Artificial log burner element

13
D23/405

Lining or enclosure for opening (31)

24
D23/406

Screen

40
D23/404

Mantle or frame for opening

91
D23/387

Flow director (29)

63
D23/388

Register or diffuser

114
D23/392

Adjustable louver or damper

18
D23/391

Arched or curved top

4
D23/389

Baseboard type

24
D23/390

Circular

22
D23/393

Vent, ductwork, or element thereof

319
D23/394

Stovepipe

0
D23/397

Grate

6
D23/398

Fireplace type (30)

44
D23/401

Enclosed four sides

4
D23/399

Hollow tube circulator with blower unit

24
D23/400

Perforated or expanded metal

6
D23/402

Stove or furnace type

5
D23/395

Radiator cover or cabinet

22
D23/396

Stoker

6
D23/421

Valve or control

4
D23/329

Furnace

38
D23/316

Liquid immersion type, e.g., aquarium, swimming pool, etc. (24)

25
D23/317

Mobile space heater, e.g., wheeled blower type, etc.

76
D23/332

Portable

297
D23/333

Air conditioner

79
D23/334

Animal or agricultural heater

1
D23/341

Element

28
D23/335

Heating element protected by grille, grid, etc.

284
D23/336

Circular or cylindrical housing

86
D23/339

Gas fired type

31
D23/338

Liquid fuel type, e.g., kerosene, etc.

64
D23/337

Pedestal or pivoting head mount

58
D23/340

Quartz type

11
D23/330

Radiator, e.g., spaced enclosed heat exchangers

52
D23/331

Plant life or scroll type ornamentation

0
D23/315

Sauna or steam bath type

12
D23/342

Stabile space heater

151
D23/343

Fireplace or solid fuel heating stove (25)

182
D23/348

Circular horizontal cross section

42
D23/344

Fireplace insert

76
D23/345

Masonry or tile-like surround, e.g., architectural type fireplace

19
D23/346

Ornate cast iron type (26)

30
D23/347

Element therefor, e.g., stove plate, etc.

14
D23/349

Simulative

30
D23/350

Symmetrical front

105
D23/324

Vehicle heating or cooling

38
D23/325

Air conditioning

58
D23/326

Defroster

3
D23/327

With adjustable louver or door

9
D23/499

Miscellaneous

28
D23/270

Sanitary fixture or housing therefor

13
D23/277

Bathtub (15)

272
D23/278

Infant type

64
D23/280.1

Symmetrical (16)

192
D23/280.4

Footed

24
D23/280.3

Having antislip surface

22
D23/280.2

Having support handle

36
D23/279

With door or provision for external storage

18
D23/271

Combined (13)

46
D23/275

Bathtub and shower enclosure

60
D23/272

Sink and stove or refrigerator

9
D23/274

Sink and water closet or urinal

28
D23/273

Sink, water closet and bathing unit

2
D23/303

Element or attachment (20)

81
D23/304

Bathtub or shower

418
D23/307

Splash shield

35
D23/305

Surround, door or panel

68
D23/306

Front

15
D23/308

Sink (21)

166
D23/309

Water closet or urinal

154
D23/310

Deflector (22)

29
D23/311

Seat, or bowl cover (23)

356
D23/312

Simulative

20
D23/313

Tank or tank cover

92
D23/283

Shower or shower receptor (17)

194
D23/284

Sink

241
D23/288

Corner type

10
D23/290

Plural

206
D23/289

Shampoo type (e.g., with depression on rim for neck, etc.)

36
D23/285

Simulative, or with radiating striations

49
D23/293.1

Symmetrical (16)

379
D23/292

Unitary singular support column

123
D23/286

With cabinet or with provision for storage

137
D23/287

With drainboard (i.e., adjacent recessed inclined surface)

62
D23/291

With integral spout or hooded overflow

13
D23/276

Sitz bath (14)

3
D23/302

Urinal (19)

68
D23/295

Water closet, bidet or bowl therefor

214
D23/296

Infant training type

67
D23/297

Simulative

25
D23/299

Self-contained (i.e., chemical or portable type)

71
D23/298

Simulative

7
D23/300

Wall mounted

26
D23/301

With water tank (18)

207
 
 
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