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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
5981072 Oxidation and corrosion resistant flexible graphite composite sheet and method Nov. 9, 1999
5976444 Nanochannel glass replica membranes Nov. 2, 1999
5976471 Ozone decomposing filter Nov. 2, 1999
5976664 Curved molding, in particular for furniture Nov. 2, 1999
5971130 Workpiece identification providing method, workpiece, workpiece identifying method and apparatus thereof, and sheet metal machining apparatus Oct. 26, 1999
5972469 Baffle for eliminating interference ring(s) from the output light pattern of a deuterium lamp Oct. 26, 1999
5972505 Fibers capable of spontaneously transporting fluids Oct. 26, 1999
5968444 Method for pre-shaping of plastic films used in co-molding processes and improved paint film covered parts made thereby Oct. 19, 1999
5964991 Sintered laminated structures, electrochemical cells and process for producing such sintered laminated structures Oct. 12, 1999
5962104 Optical table Oct. 5, 1999
5962106 Absorbent product Oct. 5, 1999
5962107 Perforated cellular sound absorption material Oct. 5, 1999
5962348 Method of making thermal core material and material so made Oct. 5, 1999
5958544 Magnetic recording medium and process for producing the same Sep. 28, 1999
5954097 Papermaking fabric having bilaterally alternating tie yarns Sep. 21, 1999
5955183 Spiral coil binding system Sep. 21, 1999
5948497 High stability silver based alloy reflectors for use in a writable compact disk Sep. 7, 1999
5945179 Paper type or similar sheet substrate for using in printing or reproduction processes Aug. 31, 1999
5945196 Method of manufacturing screen and films produced therewith Aug. 31, 1999
5942292 Spacer for liquid crystal display and liquid crystal display made by using the same Aug. 24, 1999
5939168 Vision control panel for displaying discrete images observable from one side of the panel and method of making Aug. 17, 1999
5939171 Micromechanical component Aug. 17, 1999
5939178 Process for producing a multilayered elastic sheetlike structure; as well as a multilayered elastic sheetlike structure Aug. 17, 1999
5935681 Perforated stretch wrap film Aug. 10, 1999
5932313 Rubber-based paper feed rollers Aug. 3, 1999
5928758 Blanks for microfilm insertions Jul. 27, 1999
5922421 Combined vapor barrier and water drain assembly for covers of heated water tubs and pools Jul. 13, 1999
5922422 Readily removable labels Jul. 13, 1999
5922432 Corner member for reinforcing tarpaulins Jul. 13, 1999
5919177 Permeable fiber-like film coated nonwoven Jul. 6, 1999
5919546 Porous ceramic impregnated wiring body Jul. 6, 1999
5916661 Selectively apertured nonwoven web Jun. 29, 1999
5906710 Paper having penninsular segments May. 25, 1999
5906873 Puncture, pierce, and cut resistant fabric May. 25, 1999
5906878 Apparatus and method for deterring slippage of a slip cover or cushion placed on furniture May. 25, 1999
5904794 Decal for vulcanized tires and method of obtaining a tire having a colored motif May. 18, 1999
5899893 Absorbent articles containing foams useful for absorbing blood and blood-based liquids May. 4, 1999
5900298 Mineral fiber insulation batt impregnated with extruded synthetic fibers, and apparatus for making same May. 4, 1999
5897543 Film Apr. 27, 1999
5895380 Absorbent products Apr. 20, 1999
5895623 Method of producing apertured fabric using fluid streams Apr. 20, 1999
5890336 Base sheet for roofing assembly Apr. 6, 1999
5888604 Foldable mat for absorbing liquids Mar. 30, 1999
5888614 Microperforated strength film for use as an anti-infiltration barrier Mar. 30, 1999
5885688 Steel reinforced filled polymer torque rod Mar. 23, 1999
5879782 Absorbent articles comprising apertured films having durable wettability Mar. 9, 1999
5876828 Blank for decorator's tool Mar. 2, 1999
5874154 Structure including a partially electrochemically reduced halogenated polymeric containing layer and an electrically conductive pattern Feb. 23, 1999
5871849 Wood substitute turning blank and method of making the same Feb. 16, 1999
5866231 Sound and thermic insulation mattress having a foam insert for securing to a support and a method for preparing such mattress Feb. 2, 1999

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