Patent US2011489A successfully refreshed from Google Patents.
Patent US2879245A successfully refreshed from Google Patents.
US2879245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reaction product of sulfur vulcanized rubber polymer and a material having carbon tocarbon unsaturation alpha to an electron acceptor group
Assignee: U S Rubber Reclaiming Co Inc
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Filing: 1955-02-24
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Granted: 1959-03-24
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Expires: 1975-02-24
Abstract
No abstract record available.
Inventors
- 👤 Green Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:17
CPC Classifications
C; C08; C08C; C08C19/00; C08C19/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A REACTION PRODUCT OF SULPHUR-VULCANIZED HYDROCARBON RUBBERY POLYMER OF A CONJUGATED DIENE AND SUBSTANTIALLY OVER 0.04 MOL, AND UP TO 0.51 MOL, PER 100 GRAMS OF RUBBER HYDROCARBON, OF MATERIAL HAVING A CARBON-TO-CARBON UNSATURATION ALPHA TO AN ELECTRON-ACCEPTOR GROUP AND BEING OF THE CLASS CONSISTING OF CARBOXYLIC ACIDS, ANHYDRIDES OF CARBOXYLIC ACIDS, ALDEHYDES, KETONES, ESTERS OF CARBOXYLIC ACIDS, AND NITRILES.
Claim 2
Dependent Claim
60 words
A REACTION PRODUCT OF SULPHUR-VULCANIZED HYDROCARBON RUBBERY POLYMER OF A CONJUGATED DIENE AND SUBSTANTIALLY OVER 0.04 MOL, AND UP TO 0.51 MOL, PER 100 GRAMS OF RUBBER HYDROCARBON, OF MATERIAL HAVING A CARBON-TO-CARBON UNSATURATION ALPHA TO AN ELECTRON-ACCEPTOR GROUP AND BEING OF THE CLASS CONSISTING OF CARBOXYLIC ACIDS, ANHYDRIDES OF CARBOXYLIC ACIDS, ALDEHYDES, KETONES, ESTERS OF CARBOXYLIC ACIDS, AND NITRILES.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-23 | 1962-09-22 | 1963-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-23 | 1966-09-22 | 1967-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-23 | 1970-09-22 | 1971-03-24 | $7700.00 | Window Closed / Lapsed |