Patent US3438971A successfully refreshed from Google Patents.
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 17:31
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/101; C08K5/103
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2485592A
Cited
US2895938A
Cited
US2889308A
Cited
US2941977A
Cited
US3090767A
Cited
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 |