US2649432A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vulcanization with alkyl dimethylolphenol and alknaolamine
Assignee: Uniroyal Inc
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Filing: 1951-03-05
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Granted: 1953-08-18
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Expires: 1971-03-05
Abstract
No abstract record available.
Inventors
- 👤 Julian R Little
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:13
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0008; C08K5/0025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
THE METHOD OF VULCANIZING SYNTHETIC RUBBER SELECTED FROM THE GROUP CONSISTING OF POLYMERS OF ALIPHATIC CONJUGATED DIOLEFINS AND COPOLYMERS OF AN ALIPHATIC CONJUGATED DIOLEFIN AND ANOTHER MONOMER, WHICH COPOLYMERS CONTAIN AT LEAST 25% OF AN ALIPHATIC CONJUGATED DIOLEFIN, WHICH COMPRISES HEATING A MIXTURE OF SAID RUBBER, CARBON BLACK IN AN AMOUNT EQUAL TO AT LEAST 15 PARTS PER 100 PARTS OF SAID RUBBER, A COMPOUND HAVING THE FORMULA
Claim 2
Independent Claim
68 words
THE METHOD OF VULCANIZING SYNTHETIC RUBBER SELECTED FROM THE GROUP CONSISTING OF POLYMERS OF ALIPHATIC CONJUGATED DIOLEFINS AND COPOLYMERS OF AN ALIPHATIC CONJUGATED DIOLEFIN AND ANOTHER MONOMER, WHICH COPOLYMERS CONTAIN AT LEAST 25% OF AN ALIPHATIC CONJUGATED DIOLEFIN, WHICH COMPRISES HEATING A MIXTURE OF SAID RUBBER, CARBON BLACK IN AN AMOUNT EQUAL TO AT LEAST 15 PARTS PER 100 PARTS OF SAID RUBBER, A COMPOUND HAVING THE FORMULA
References Cited (Backward Citations)
US1802752A
Cited
US2026442A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-17 | 1957-02-16 | 1957-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-17 | 1961-02-16 | 1961-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-17 | 1965-02-16 | 1965-08-18 | $7700.00 | Window Closed / Lapsed |