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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
4952443 Covering element with a light cascade effect for agricultural applications Aug. 28, 1990
4940624 Masking member Jul. 10, 1990
4937108 Carrier device for releasably holding a strip of material Jun. 26, 1990
4937131 Cushioning dunnage pad with stitching perforations Jun. 26, 1990
4935320 Adhesively bonded photostructurable polyimide film Jun. 19, 1990
4931331 Laminated tile product, method for producing the same and method for installing the same Jun. 5, 1990
4929399 Structured column packing with liquid holdup May. 29, 1990
4925722 Disposable semi-durable nonwoven fabric May. 15, 1990
4923731 Novel preform screens and preform product May. 8, 1990
4919989 Article for sealing well castings in the earth Apr. 24, 1990
4919990 Paper buster Apr. 24, 1990
4919992 Process for making microporous products and the products thereof Apr. 24, 1990
4918411 Dielectric aperture assembly and method for fabricating the same Apr. 17, 1990
4913930 Method for coating semiconductor components on a dielectric film Apr. 3, 1990
4913953 Integral chopped fiber reinforced glass or glass-ceramic structures Apr. 3, 1990
4911965 Assembly for protecting decorative surface Mar. 27, 1990
4910063 Insulating module Mar. 20, 1990
4908245 Self retaining injection molded shims Mar. 13, 1990
4908255 Separate plate and process for producing the same Mar. 13, 1990
4908259 Molded article with partial metal plating and a process for producing such article Mar. 13, 1990
4905735 Refrigerant transporting hose Mar. 6, 1990
4900607 Sealing profile Feb. 13, 1990
4898756 Insert for a sandwich structure Feb. 6, 1990
4898759 Molded printed circuit board for use with a brushless electric motor Feb. 6, 1990
4897299 Grating of fiber reinforced plastic Jan. 30, 1990
4895742 Convertible receptacle Jan. 23, 1990
4891255 (110) Oriented silicon wafer latch accelerometer and process for forming the same Jan. 2, 1990
4891258 Stretchable absorbent composite Jan. 2, 1990
4888236 Torque rod of composite material Dec. 19, 1989
4888247 Low-thermal-expansion, heat conducting laminates having layers of metal and reinforced polymer matrix composite Dec. 19, 1989
4886692 Dust control mat with non-cleated borders Dec. 12, 1989
4882130 Porous structure of fluid contact Nov. 21, 1989
4879155 Pleated cloth and method for producing the same Nov. 7, 1989
4876136 Lipstick sampling device Oct. 24, 1989
4863778 Products, processes and use Sep. 5, 1989
4861632 Laminated bag Aug. 29, 1989
4861639 Reticular structures having improved mechanical characteristics Aug. 29, 1989
4859517 Formable honeycomb panel Aug. 22, 1989
4859519 Method and apparatus for preparing textured apertured film Aug. 22, 1989
4853065 Method of manufacturing clean-room compatible honeycomb tables Aug. 1, 1989
4851275 Covering used to protect water conditions of nursery pool from damage by acid rain and extraordinary temperatures Jul. 25, 1989
4847130 Tag attachment system Jul. 11, 1989
4847133 Synthetic fiber healthcare fabric Jul. 11, 1989
4847134 Stretchable absorbent undergarment Jul. 11, 1989
4842036 Vertical blind slats, and assemblies and components thereof Jun. 27, 1989
4840829 Nonwoven fabric patterned with apertures Jun. 20, 1989
4839209 Sheet-shaped, corrosion resistant parts of apparatus Jun. 13, 1989
4839215 Biocompatible particles and cloth-like article made therefrom Jun. 13, 1989
4839216 Formed material produced by solid-state formation with a high-pressure liquid stream Jun. 13, 1989
4837066 Foldable rigidified textile panels Jun. 6, 1989

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