US2987497A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vulcanization of butyl rubber with 2, 6-dimethylol-3, 5-dimethyl-4-chlorophenol, andvulcanizate obtained thereby
Assignee: Goodyear Tire and Rubber Co
•
Filing: 1958-12-24
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Granted: 1961-06-06
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Expires: 1978-12-24
Abstract
No abstract record available.
Inventors
- 👤 Leshin Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:27
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/18; C08L23/20; C08L23/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
AN ELASTIC VULCANIZATE COMPRISING A RUBBERY COPOLYMER OF AN ISOOLEFIN HAVING FROM 4 TO 7 CARBON ATOMS WITH FROM 0.5 TO 10% OF A CONJUGATED DIOLEFIN HAVING FROM 4 TO 8 CARBON ATOMS, VULCANIZED WITH FROM 1 TO 25 PARTS OF 2,6-DIMETHYLOL-3,5-DIMETHYL-4-CHLOROPHENOL PER 100 PARTS OF THE RUBBERY COPOLYMER.
Claim 2
Dependent Claim
49 words
AN ELASTIC VULCANIZATE COMPRISING A RUBBERY COPOLYMER OF AN ISOOLEFIN HAVING FROM 4 TO 7 CARBON ATOMS WITH FROM 0.5 TO 10% OF A CONJUGATED DIOLEFIN HAVING FROM 4 TO 8 CARBON ATOMS, VULCANIZED WITH FROM 1 TO 25 PARTS OF 2,6-DIMETHYLOL-3,5-DIMETHYL-4-CHLOROPHENOL PER 100 PARTS OF THE RUBBERY COPOLYMER.
References Cited (Backward Citations)
US2726224A
Cited
US2808445A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |