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US2973284A Expired / Lapsed US ⏱️ 0.0 years remaining

Leather-like material

Assignee: Goodrich Corp
•
Filing: 1957-04-30
•
Granted: 1961-02-28
•
Expires: 1977-04-30
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Abstract

No abstract record available.

Inventors

  • 👤 Stephen T Semegen

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 01:24
CPC Classifications
D; D06; D06N; D06N3/00; D06N3/12; D06N3/14; D06N3/04; D06N3/10; Y; Y10; Y10S; Y10S428/00; Y10S428/904; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31573; Y10T428/3158; Y10T428/31587; Y10T442/00; Y10T442/20; Y10T442/2041; Y10T442/2098; Y10T442/2139

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 168 words
A PERMEABLE LEATHER-LIKE MATERIAL COMPRISING A NONWOVEN FABRIC OF TEXTILE FIBERS WITH THE FIBERS IMPREGNATED WITH SUCCESSIVE LAYERS OF (A) A RUBBERY INTERPOLYMER OF A MAJOR PROPORTION OF BUTADIENE-1,3 AND A MINOR PROPORTION OF A NITRILE SELECTED FROM THE GROUP CONSISTING OF ACRYLONITRILE AND METHACRYLONITRILE, SAID INTERPOLYMER BEING PRESENT IN A QUANTITY OF ABOUT 5 TO ABOUT 150% BY WEIGHT OF INTERPOLYMER BASED ON THE ORIGINAL FIBERS, AND (B) A POLYESTERURETHANE DERIVED FROM THE REACTION IN THE PRESENCE OF MOISTURE OF ABOUT 1.2 TO 2.0 MOL EQUIVALENTS OF AN ORGANIC DIISOCYANATE WITH ONE MOL EQUIVALENT OF A POLYESTER OF AN ALIPHATIC DICARBOXYLIC ACID AND A GLYCOL OF THE FORMULA HO-R-OH WHEREIN R IS AN ALKYLENE RADICAL CONTAINING 2 TO 10 CARBON ATOMS, SAID POLYESTER BEING ESSENTIALLY HYDROXYL TERMINATED AND HAVING A MOLECULAR WEIGHT FROM ABOUT 4000 TO ABOUT 9000, SAID POLYESTERURETHANE BEING PRESENT IN A QUANTITY OF ABOUT 10 TO 200% BY WEIGHT OF POLYESTERURETHANE BASED ON THE ORIGINAL FIBERS, AND THE TOTAL QUANTITY OF BOTH LAYERS (A)

References Cited (Backward Citations)

US1905749A Cited
US2159639A Cited
US2333917A Cited
US2650212A Cited
US2657151A Cited
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US2790736A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1964-02-28 1964-08-29 1965-02-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1968-02-28 1968-08-29 1969-02-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1972-02-28 1972-08-29 1973-02-28 $7700.00 Window Closed / Lapsed

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