US2801980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antioxidant for rubber
Assignee: Goodyear Tire and Rubber Co
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Filing: 1953-04-17
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Granted: 1957-08-06
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Expires: 1973-04-17
Abstract
No abstract record available.
Inventors
- 👤 Ronald B Spacht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:27
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/13; C08L; C08L21/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
AN OXIDIZABLE RUBBERY POLYMER OF A CONJUGATED DIENE SELECTED FROM THE GROUP CONSISTING OF NATURAL RUBBER, POLYCHLOROPRENE, THE COPOLYMERS OF ISOBUTYLENE WITH ISOPRENE, THE COPOLYMERS OF BUTADINE WITH STYRENE AND THE COPOLYMERS OF BUTADIENE WITH ACRYLONIUTRILE, CONTAINING AS AN ANTIOXIDANT IN AN ANTIOXIDANT AMOUNT ONE OF THE RESINOUS HOMOPOLYMERIZATION PRODUCTS OF AN ALLYL PHENOL CONFORMING TO THE FOLLOWING STRUCTURE
Claim 2
Dependent Claim
59 words
AN OXIDIZABLE RUBBERY POLYMER OF A CONJUGATED DIENE SELECTED FROM THE GROUP CONSISTING OF NATURAL RUBBER, POLYCHLOROPRENE, THE COPOLYMERS OF ISOBUTYLENE WITH ISOPRENE, THE COPOLYMERS OF BUTADINE WITH STYRENE AND THE COPOLYMERS OF BUTADIENE WITH ACRYLONIUTRILE, CONTAINING AS AN ANTIOXIDANT IN AN ANTIOXIDANT AMOUNT ONE OF THE RESINOUS HOMOPOLYMERIZATION PRODUCTS OF AN ALLYL PHENOL CONFORMING TO THE FOLLOWING STRUCTURE
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) | 1960-08-05 | 1961-02-04 | 1961-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-05 | 1965-02-04 | 1965-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-05 | 1969-02-04 | 1969-08-06 | $7700.00 | Window Closed / Lapsed |