US3438971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diene rubber-nitrile copolymer-unsaturated triglyceride blends having increased toughness
Assignee: Monsanto Co
•
Filing: 1967-06-22
•
Granted: 1969-04-15
•
Expires: 1987-06-22
Abstract
No abstract record available.
Inventors
- 👤 George E Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:47
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/101; C08K5/103
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2485592A
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US2895938A
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US2889308A
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US2941977A
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US3090767A
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US3242125A
Cited
US3328488A
Cited
US3324060A
Cited
US3297792A
Cited
US3354108A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-14 | 1972-10-14 | 1973-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-14 | 1976-10-14 | 1977-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-14 | 1980-10-14 | 1981-04-15 | $7700.00 | Window Closed / Lapsed |