US2992940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of cellular materials
Assignee: Goodyear Tire and Rubber Co
•
Filing: 1957-01-23
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Granted: 1961-07-18
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Expires: 1977-01-23
Abstract
No abstract record available.
Inventors
- 👤 Henry A Pace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:28
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/36; C08J9/40; C08J9/42; C08J2375/00; C08J2375/04; C08J2483/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
THE METHOD OF ELIMINATING THE INTERNAL TACK FROM ELASTOMERIC FLEXIBLE CELLULAR STRUCTURE PREPARED BY THE REACTION OF AN ACTIVE-HYDROGEN-CONTAINING POLYMERIC MATERIAL SAID ACTIVE-HYDROGEN-CONTAINING MATERIAL BEING SELECTED FROM THE GROUP CONSISTING OF POLYESTERS, POLYESTERAMIDES AND POLYETHYLENE GLYCOLS HAVING AN AVERAGE MOLECULAR WEIGHT OF FROM 750 TO 2,250, AND ACID NUMBER NOT GREATER THAN 5 AND A HYDROXYL NUMBER OF FROM 50 TO 150, AN ORGANIC POLYISOCYANATE AND WATER, WHICH COMPRISES TREATING THE SAID CELLULAR STRUCTURE WITH A SILICONE OIL, SAID SILICONE OIL BEING DEFINED BY THE FORMULA:
Claim 2
Independent Claim
86 words
THE METHOD OF ELIMINATING THE INTERNAL TACK FROM ELASTOMERIC FLEXIBLE CELLULAR STRUCTURE PREPARED BY THE REACTION OF AN ACTIVE-HYDROGEN-CONTAINING POLYMERIC MATERIAL SAID ACTIVE-HYDROGEN-CONTAINING MATERIAL BEING SELECTED FROM THE GROUP CONSISTING OF POLYESTERS, POLYESTERAMIDES AND POLYETHYLENE GLYCOLS HAVING AN AVERAGE MOLECULAR WEIGHT OF FROM 750 TO 2,250, AND ACID NUMBER NOT GREATER THAN 5 AND A HYDROXYL NUMBER OF FROM 50 TO 150, AN ORGANIC POLYISOCYANATE AND WATER, WHICH COMPRISES TREATING THE SAID CELLULAR STRUCTURE WITH A SILICONE OIL, SAID SILICONE OIL BEING DEFINED BY THE FORMULA:
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) | 1964-07-17 | 1965-01-16 | 1965-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-17 | 1969-01-16 | 1969-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-17 | 1973-01-16 | 1973-07-18 | $7700.00 | Window Closed / Lapsed |