US3405162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymer produced by the copolymerization of an organic starter, a vicinal epoxide,and an ethylenically unsaturated monomer
Assignee: Union Carbide Corp
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Filing: 1964-10-23
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Granted: 1968-10-08
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Expires: 1984-10-23
Abstract
No abstract record available.
Inventors
- 👤 Kuryla William Collier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:54
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/26; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/48; C08G18/62
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2382285A
Cited
FR1194712A
Cited
US3044989A
Cited
US3119848A
Cited
US3255253A
Cited
DE1157387B
Cited
DE1167521B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |