Patent US3012004A successfully refreshed from Google Patents.
US3012004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Butyl rubber stabilization
Assignee: Monsanto Chemicals Ltd
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Filing: 1959-04-21
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Granted: 1961-12-05
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Expires: 1979-04-21
Abstract
No abstract record available.
Inventors
- 👤 Joseph W Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:59
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/49; C08K5/5398
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
THE COMPOSITION COMPRISING UNVULCANIZED COPOLYMER COMPOSED OF AT LEAST 85% ISOBUTYLENE AND A MINOR AMOUNT OF A CONJUGATED DIENE HYDROCARBON THE STORAGE LIFE OF WHICH HAS BEEN ENHANCED BY HAVING INCORPORATED THEREIN A SMALL AMOUNT, SUFFICIENT TO INHIBIT DEPOLYMERIZATION, OF A PHOSPHORUS SULFIDE REPRESENTED BY THE STRUCTURE
Claim 2
Dependent Claim
47 words
THE COMPOSITION COMPRISING UNVULCANIZED COPOLYMER COMPOSED OF AT LEAST 85% ISOBUTYLENE AND A MINOR AMOUNT OF A CONJUGATED DIENE HYDROCARBON THE STORAGE LIFE OF WHICH HAS BEEN ENHANCED BY HAVING INCORPORATED THEREIN A SMALL AMOUNT, SUFFICIENT TO INHIBIT DEPOLYMERIZATION, OF A PHOSPHORUS SULFIDE REPRESENTED BY THE 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) | 1964-12-04 | 1965-06-05 | 1965-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-04 | 1969-06-05 | 1969-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-04 | 1973-06-05 | 1973-12-05 | $7700.00 | Window Closed / Lapsed |