US2851389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced tear-resistant material
Assignee: Griffolyn Co Inc
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Filing: 1957-02-04
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Granted: 1958-09-09
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Expires: 1977-02-04
Abstract
No abstract record available.
Inventors
- 👤 Risto P Lappala
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:16
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29C70/16; B29C70/22; B29C70/224; B32; B32B; B32B27/00; B32B37/00; B32B37/12; Y; Y10; Y10S; Y10S116/00; Y10S116/14; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24521; Y10T428/24554; Y10T428/27; Y10T428/273; Y10T428/29; Y10T428/2913; Y10T428/298; Y10T428/31504; Y10T428/3154; Y10T428/31544; Y10T428/31786; Y10T428/31815; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31899; Y10T428/31902; Y10T428/31909; Y10T428/31913; Y10T428/31917; Y10T428/31935
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
100 words
A LAMINATE OF TWO FILMS EACH LESS THAN .015 INCH THICH OF FLEXIBLE NON-FIBROUS SYNTHETIC RESIN CHARACTERIZED BY 20% TO 800% ELONGATION BEFORE TENSILE FAILURE, ADHESIVELY, ATTACHED TOGETHER WITH A SUBSTANTIALLY PERMANENTLY TACKLY ADHESIVE IN THE AMOUNT OF ONE-HALF OUNCE TO TWO OUNCES PER SQUARE YARD OF SURFACE OF THE LAMINATE AND HAVING EMBEDDED IN SAID ADHESIVE A GRID OF FIBROUS ORGANIC POLYMERIC SUBSTANTIALLY ONLY SLIGHTLY TWISTED STRANDS OF MULITIFILAMENTARY 500 TO 2400 DENIER ROVING HAVING FROM ONE TURN PER FOOR TO FOUR TURNS PER INCH OF TWIST THEREIN, SAID STRANDS BEING SLIDABLE BOTH LENGTHWISE AND SIDEWISE IN SAID ADHESIVE.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |