Patent US2977348A successfully refreshed from Google Patents.
US2977348A
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US
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Vulcanization of butyl rubber with 2, 2'-methylene-bis-(4-nitro-6-acetoxymethylphenol) or 2, 6-bis-(acetoxymethyl)-4-nitrophenol
Assignee: Uniroyal Inc
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Filing: 1958-10-07
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Granted: 1961-03-28
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Expires: 1978-10-07
Abstract
No abstract record available.
Inventors
- 👤 Pliny O Tawney
- 👤 George H Brice
- 👤 Viohl Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:46
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/32; C07; C07C; C07C205/00; C07C205/39; C07C205/42; C08F; C08F10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A METHOD COMPRISING HEATING 100 PARTS OF A RUBBERY COPOLYMER OF AN ISOOLEFIN HAVING FROM 4 TO 8 CARBON ATOMS WITH A DIOLEFIN HAVING FROM 4 TO 8 CATBON ATOMS, THE SAID COPOLYMER CONTAINING FROM 0.5 TO 10% OF SAID DIOLEFIN, IN ADMIXTURE WITH FROM 0.25 TO 15 PARTS OF A NITROPHENOL HAVING THE STRUCTURAL FORMULA:
Claim 2
Independent Claim
56 words
A METHOD COMPRISING HEATING 100 PARTS OF A RUBBERY COPOLYMER OF AN ISOOLEFIN HAVING FROM 4 TO 8 CARBON ATOMS WITH A DIOLEFIN HAVING FROM 4 TO 8 CATBON ATOMS, THE SAID COPOLYMER CONTAINING FROM 0.5 TO 10% OF SAID DIOLEFIN, IN ADMIXTURE WITH FROM 0.25 TO 15 PARTS OF A NITROPHENOL HAVING THE STRUCTURAL FORMULA:
References Cited (Backward Citations)
US2525061A
Cited
US2830970A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-27 | 1964-09-26 | 1965-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-27 | 1968-09-26 | 1969-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-27 | 1972-09-26 | 1973-03-28 | $7700.00 | Window Closed / Lapsed |