US3491075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crosslinking of polymers having dependent ester groups with polyvalent metal alkoxides
Assignee: Union Oil Company of California
•
Filing: 1965-10-13
•
Granted: 1970-01-20
•
Expires: 1985-10-13
Abstract
No abstract record available.
Inventors
- 👤 Henri G G Dekking
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:42
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2680108A
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US2892780A
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US3277157A
Cited
US3350475A
Cited
US3361845A
Cited
US3219604A
Cited
US3404134A
Cited
US3317483A
Cited
US3369003A
Cited
US3175996A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |