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US2909584A
Expired / Lapsed
US
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Vulcanizable natural rubber composition and method of vulcanizing same
Assignee: Goodyear Tire and Rubber Co
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Filing: 1959-01-23
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Granted: 1959-10-20
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Expires: 1979-01-23
Abstract
No abstract record available.
Inventors
- 👤 Carl R Parks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:02
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
THE METHOD OF VULCANIZING NATURAL RUBBER WHICH COMPRISES HEATING AND PRESSING IT IN A MOLD IN THE PRESENCE OF A SULFUR-BEARING CURING AGENT FOR A RUBBER CONTAINING ETHYLENCE UNSATURATION, AND FROM 0.5 PARTS BY WEIGHT, PER 100 PARTS BY WEIGHT OF THE NATURAL RUBBER, OF A PEROXIDE OF THE GENERAL FORMULA:
Claim 2
Independent Claim
51 words
THE METHOD OF VULCANIZING NATURAL RUBBER WHICH COMPRISES HEATING AND PRESSING IT IN A MOLD IN THE PRESENCE OF A SULFUR-BEARING CURING AGENT FOR A RUBBER CONTAINING ETHYLENCE UNSATURATION, AND FROM 0.5 PARTS BY WEIGHT, PER 100 PARTS BY WEIGHT OF THE NATURAL RUBBER, OF A PEROXIDE OF THE GENERAL FORMULA:
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-19 | 1963-04-20 | 1963-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-19 | 1967-04-20 | 1967-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-19 | 1971-04-20 | 1971-10-20 | $7700.00 | Window Closed / Lapsed |