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Class Information
Number: 383
Name: Flexible bags >
Description: This is the residual class for receptacles comprised of a peripheral wall made of flaccid or flexible material, with at least one closed end, and having an access opening, which may be an open end of the receptacle or which may be provided in the peripheral wall or closed end of the receptacle. Receptacles of this class type must function, by disclosure, to hold contents which in turn are to be eventually removed from the receptacle.










Class Number Class Name No. of Patents
383/210

Bag closure secured by a releasable or frangible bond (e.g., peel seal)

252
383/211

Adhesive bond

209
383/210.1

Having another independent closure for same access opening

100
383/200

Bag having means to facilitate opening it by severing bag material or bag part (e.g., tearing, cutting, piercing, etc.)

167
383/202

Combined with, or modified for opening by, a sharp-edged cutting implement or a piercing implement

90
383/205

Including a separate tearing element which is gripped and pulled to open the bag

117
383/206

Cord, string, wire, or thread

46
383/203

Including means for reclosing the bag

161
383/204

Including a bag portion which is completely separated from the bag during tearing (e.g., tear strip)

146
383/207

Line of weakness delineates substantially the entire tearing path

176
383/209

Bag portion completely separated from the bag during tearing

166
383/208

Line of perforations having means for preventing leakage before opening

41
383/201

Tearing facilitated by specified fiber or molecular orientation

31
383/1

Biodegradable feature

60
383/38

Compartmented

411
383/39

Compartment-forming member secured to backing

136
383/40

Including auxiliary compartment

206
383/4

Convertible

375
383/905

Dead fold (ductile) closure element

34
383/906

Dispensing feature

289
383/121

End structure (e.g. bottom)

140
383/123

Formed by folding bag walls on common fold line and joining together

28
383/124

Foldable to form distinct end wall

17
383/125

Overlapping extensions of opposed walls

29
383/126

Extension formed by cuts in bag wall

23
383/121.1

Rigid bottom

56
383/122

Seamless

75
383/904

Filling tube

80
383/104

Free-standing

298
383/902

Having nonbag use

20
383/901

Hot water or ice bag

47
383/3

Inflatable

272
383/6

Lifting or suspending element (e.g., handle)

160
383/12

Attached to bag frame

42
383/21

Attached to distinct end wall

51
383/13

Detachable

112
383/22

Hanging element

146
383/24

Closed loop

179
383/23

Hook-type

77
383/17

Including reinforcement or stress distribution means attached to or adjacent element

100
383/20

Additional layer of material at element attachment location

55
383/18

Extending across bag bottom

52
383/19

Extending axially through bag interior to bag bottom

15
383/11

Magnetic or adhesive-type element (includes hook and loop type fastener)

65
383/16

Plural elements located at diverse bag regions (i.e., bag bottom, bag middle, and/or bag top)

127
383/15

Plural interengaging elements

63
383/25

Single element

75
383/26

Bag includes opening through bag material to receive element

41
383/27

Opening extending through fold or folded bag portion

23
383/28

Secured to bag interior

20
383/30

Secured to folded bag closure

15
383/31

Closure flap

13
383/29

Straddles bag mouth

38
383/7

Unitary with bag (e.g., element formed by hand hole)

135
383/9

Bag material includes aperture for rodlike support

234
383/10

Bag material includes hand-receiving aperture

184
383/8

Loop extending between opposite walls

156
383/14

With provision for positioning element in nonuse location

64
383/908

Material having specified grain direction or molecular orientation

58
383/127

Miscellaneous

143
383/907

Peculiar, particular shape

142
383/37

Plural

360
383/2

Selectively adjustable volume

146
383/903

Stress relief

88
383/5

Tamper indicating

288
383/105

Wall details

140
383/109

Multi-layer or ply

304
383/113

Barrier layer or ply (e.g., waterproof)

283
383/116

Coating or lamination

178
383/114

Including specified end structure

36
383/115

Overlapping extension formed by cuts in bag wall

5
383/110

Insulated

139
383/111

Removable ply

159
383/112

Stretchable layer or ply

18
383/120

Pleated or gusseted

409
383/119

Reinforced

393
383/107

Specified seam structure

250
383/108

Waterproof

40
383/118

Stretchable

40
383/106

Transparent portion or window

146
383/117

Woven or mesh-type material

274
383/42

With closure

60
 

With closure

 
383/88

Bag walls designed to be rolled together or folded on common fold line

63
383/89

With separate securing element for roll or fold

105
383/90

Element extends substantially 180 degrees or more around roll or fold

34
383/91

Element extends around side edge

28
383/93

Closure within bag

77
383/94

Heat seal

87
383/95

Reusable

99
383/96

Stopper or plug

43
383/97

Zipper

165
383/68

Elongated clamping elements

54
383/69

Sliding

29
383/67

For access opening in bag bottom

197
383/66

For access opening in sidewall

371
383/71

Gathered bag mouth

143
383/72

Including drawstring-type securing element

77
383/75

In bag hem

166
383/76

Through bag openings

65
383/74

With means to maintain the securing element in closed configuration

38
383/73

With mouth opening aid

8
383/77

Securing element consisting of unitary bag portion

57
383/59

Including auxiliary means for forming leakproof closure seal

51
383/60

Annular gasket

10
383/84

Including closure flap which overlaps sidewall exterior when closed

105
383/85

Bag walls designed to be rolled together or folded on common fold line

43
383/86

Reusable

159
383/87

Flap side edges permanently secured to bag (e.g., sandwich bag type)

57
383/86.1

Including fastening element removably extending through aperture in bag material

2
383/86.2

Aperture extends through closure flap

7
383/92

Including securing element designed to extend through aligned openings in bag material (e.g., stitching)

23
383/78

Including separate closure element for straddling bag mouth (i.e., overlaps exterior portions of opposed bag walls)

64
383/83

Bag walls designed to be rolled together or folded on common fold line

7
383/80

Cap-type

98
383/79

Including securing element designed to extend through aligned openings in closure element (e.g., stitching)

26
383/81

Reusable

62
383/82

Bag walls designed to be rolled together or folded on common fold line

13
383/61.1

Independent closures for single access opening

66
383/61.4

Having drawstring-type element

11
383/61.2

Having rib and groove

233
383/61.5

Having securing element designed to extend through aligned openings in bag material (e.g., stitching, etc.)

4
383/61.3

Having zipper

44
383/98

Overlapped flaps

41
383/99

Reusable

50
383/63

Rib and groove

658
383/65

Including means to facilitate disengagement

134
383/64

With sliding element

302
383/43

Self-closing type

104
383/44

Responsive to content (e.g., valve)

99
383/57

Closure includes inwardly folded bag wall portions

12
383/55

Folded bag corner

6
383/56

Including separate closure element

9
383/53

In distinct end wall

10
383/54

Including separate closure element

34
383/58

Overlying access opening in bag material

14
383/46

With closure reinforcing or stiffening means

16
383/47

With means to facilitate opening closure

8
383/48

With supplemental closing feature

32
383/52

Adhesive

12
383/49

Resilient

16
383/50

Reversely folded portion of closure element

10
383/51

Slit or slot

6
383/45

With vent

32
383/70

Twisted bag mouth

28
383/62

With provision for positioning closure element in nonuse location

62
383/36

With integral funnel

48
383/35

With means to facilitate manual separation of flattened bag walls

147
383/33

With means to maintain the bag mouth in an open configuration

261
383/34

Hinged mouth stiffeners

50
383/34.1

Stiffeners include four or more hinged segments

10
383/41

With plural access openings

202
383/32

With stacking feature

49
383/100

With venting or ventilation means

145
383/101

Fluid circulates between bag plies

47
383/103

Opening in bag material

275
383/102

Pervious material

120
 
 
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