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Class Information
Number: 428/131
Name: Stock material or miscellaneous articles > Structurally defined web or sheet (e.g., overall dimension, etc.) > Including aperture
Description: Product wherein the web or sheet or a component thereof, has one or more discrete through openings with the peripheral wall or walls of each opening defined by either a line or closed loop passing through the thickness of the component while following a unidirectional or multidirectional rectilinar path.


Sub-classes under this class:

Class Number Class Name Patents
428/137 Composite web or sheet 1,362
428/134 Noncircular aperture (e.g., slit, diamond, rectangular, etc.) 348
428/132 Struck out portion type 187


Patents under this class:
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Patent Number Title Of Patent Date Issued
5860196 Grommet stress reducer Jan. 19, 1999
5861202 Laminated bodies and woven and nonwoven fabrics comprising .alpha.-olefin polymeric adhesion materials catalyzed with cyclopentadienyl catalyst Jan. 19, 1999
5861204 Roll protection shield and method and apparatus for forming same Jan. 19, 1999
5858497 Roll roofing tin cap strip Jan. 12, 1999
5858500 Tamper respondent enclosure Jan. 12, 1999
5858503 Method of applying chemical charge modifiers to a substrate and article thereof Jan. 12, 1999
5858504 Highly absorbent nonwoven fabric Jan. 12, 1999
5858505 Macroscopically perforated porous polytetrafluoroethylene materials Jan. 12, 1999
5858513 Channeled ceramic structure and process for making same Jan. 12, 1999
5853837 Laser or ink jet printable business card system Dec. 29, 1998
5853846 Conformable magnetic articles underlaid beneath traffic-bearing surfaces Dec. 29, 1998
5852957 Separate plate for a control valve used in an automatic transmission and method for fabricating same Dec. 29, 1998
5846633 One-piece molded chasis having openings and rib minimizing deformation during cooling Dec. 8, 1998
5846634 Heat shield and method of manufacturing the heat shield Dec. 8, 1998
5843279 Cellulosic fibrous structures having at least three regions distinguished by intensive properties Dec. 1, 1998
5843556 Multi purpose beach towel, tote bag, and chair cover Dec. 1, 1998
5840396 Apparatus and method for fixedly attaching protective surface covers to structural substrates Nov. 24, 1998
5840400 Perforated core honeycomb panel system Nov. 24, 1998
5840402 Metallized laminate material having ordered distribution of conductive through holes Nov. 24, 1998
5840411 Multiple layer papermaking belt providing improved fiber support for cellulosic fibrous structures, and cellulosic fibrous structures produced thereby Nov. 24, 1998
5837344 Spiral coil binding system Nov. 17, 1998
5834092 Apertured films having durable wettability and processes for making them Nov. 10, 1998
5834093 Medical dressing having a thermally expandable passage Nov. 10, 1998
5829980 Gasket for vacuum thermoforming machine Nov. 3, 1998
5830387 Process of forming a hydrophobic aerogel Nov. 3, 1998
5830554 Method of producing of microporous polyolefin membrane Nov. 3, 1998
5830555 Thermally apertured nonwoven product and process for making same Nov. 3, 1998
5827597 Topographical support member for producing nonwoven fabrics Oct. 27, 1998
5827598 Method and apparatus for sealing an aircraft penetration Oct. 27, 1998
5827604 Multilayer printed circuit board and method of producing the same Oct. 27, 1998
5824388 Clamping apparatus for imprinting disk-shaped information medium Oct. 20, 1998
5820294 Wheelchair access pathway for sand, beaches, lawns, grass and fields Oct. 13, 1998
5817387 Encapsulated insulation assembly Oct. 6, 1998
5804265 Functional freezer storage bag Sep. 8, 1998
5804281 Cellulosic fibrous structures having at least three regions distinguished by intensive properties Sep. 8, 1998
5800901 Packing paper for baker's yeast Sep. 1, 1998
5800906 Label for semiconductor wafer Sep. 1, 1998
5798163 Temporary tarp-like barrier assembly, kit and method therefor Aug. 25, 1998
5792412 Apertured films having durable wettability and processes for marking them Aug. 11, 1998
5783275 Antifalsification paper Jul. 21, 1998
5783280 Rigid thermal insulation Jul. 21, 1998
5783287 Method of insert molding plastic parts to provide covered edge surfaces and plastic parts made thereby Jul. 21, 1998
5783290 Process for forming liquid impermeable sheet material having a fibrous surface and products formed thereby Jul. 21, 1998
5776571 Combined form and label construction Jul. 7, 1998
5770144 Method of forming improved apertured films by using fluid perforation Jun. 23, 1998
5770284 Towel with integrated pocket Jun. 23, 1998
5770290 Easy open end of a metal-plastic construction Jun. 23, 1998
5766726 Flexible plastic edge strip for floor covering thresholds Jun. 16, 1998
5766773 Laminated stretch wrap film adhered by cling forces Jun. 16, 1998
5763044 Fluid pervious, dispersible, and flushable webs having improved functional surface Jun. 9, 1998

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