US3280078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyethylenically unsaturated polycarbonate polymers
Assignee: Union Carbide Corp
•
Filing: 1963-09-26
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Granted: 1966-10-18
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Expires: 1983-09-26
Abstract
No abstract record available.
Inventors
- 👤 Hostettler Fritz
- 👤 Eugene F Cox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:32
CPC Classifications
C; C08; C08G; C08G64/00; C08G64/02; C08G64/0291
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
19 words
THE SUBSTANTIALLY LINEAR POLYETHYLENICALLY UNSATURATED POLYCARBONATE POLYMERS CONSISTING ESSENTIALLY OF UP TO 99.5 MOL PERCENT OF RECURRING UNIT I:
Claim 2
Dependent Claim
19 words
THE SUBSTANTIALLY LINEAR POLYETHYLENICALLY UNSATURATED POLYCARBONATE POLYMERS CONSISTING ESSENTIALLY OF UP TO 99.5 MOL PERCENT OF RECURRING UNIT I:
Claim 3
Dependent Claim
17 words
THE PRODUCT OBTAINED BY CROSS-LINKING, THROUGH THE PENDANT GROUPS CONTAINING ETHYLENIC UNSATURATION, THE POLYMERS OF CLAIM 1.
References Cited (Backward Citations)
US2517965A
Cited
US3046255A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |