US2989513A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curing of rubber with a sulfur-olefinic hydrocarbon interpolymer, and product obtained thereby
Assignee: Goodrich Corp
•
Filing: 1958-12-15
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Granted: 1961-06-20
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Expires: 1978-12-15
Abstract
No abstract record available.
Inventors
- 👤 Hendry Charles Malcolm
- 👤 Craig David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:56
CPC Classifications
C; C08; C08L; C08L21/00; C08L7/00; C08L9/00; C08L9/02; C08L9/06; Y; Y10; Y10S; Y10S525/00; Y10S525/942
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
THE COMPOSITION COMPRISING A MAJOR PROPORTION OF A RUBBER SELECTED FROM THE GROUP CONSISTING OF NATURAL AND SYNTHETIC POLYISOPRENES, THE POLYBUTADIENES, THE POLYCHLOROPRENES, COPOLYMERS OF ISOBUTYLENE AND ISOPRENE, COPOLYMERS OF BUTADIENE-1,3 AND STYRENE AND COPOLYMERS OF BUTADIENE-1,3 AND ACRYLONITRILE AND FROM ABOUT 1 TO 12% BY WEIGHT BASED ON THE WEIGHT OF SAID RUBBER OF A CURING AGENT COMPRISING AT LEAST ONE INTERPOLYMER OF SULFUR AND AN OLEFINIC HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF STYRENE, ALPHA-METHYL STYRENE, BUTENE-1, BUTENE-2, ISOBUTYLENE, DIISOBUTYLENE, TRISOBUTYLENE, ETHYLENE AND PROPYLENE.
Claim 2
Dependent Claim
86 words
THE COMPOSITION COMPRISING A MAJOR PROPORTION OF A RUBBER SELECTED FROM THE GROUP CONSISTING OF NATURAL AND SYNTHETIC POLYISOPRENES, THE POLYBUTADIENES, THE POLYCHLOROPRENES, COPOLYMERS OF ISOBUTYLENE AND ISOPRENE, COPOLYMERS OF BUTADIENE-1,3 AND STYRENE AND COPOLYMERS OF BUTADIENE-1,3 AND ACRYLONITRILE AND FROM ABOUT 1 TO 12% BY WEIGHT BASED ON THE WEIGHT OF SAID RUBBER OF A CURING AGENT COMPRISING AT LEAST ONE INTERPOLYMER OF SULFUR AND AN OLEFINIC HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF STYRENE, ALPHA-METHYL STYRENE, BUTENE-1, BUTENE-2, ISOBUTYLENE, DIISOBUTYLENE, TRISOBUTYLENE, ETHYLENE AND PROPYLENE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |