US3494897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ethylene/bicyclo(2.2.1)hept-2-ene copolymers
Assignee: Union Carbide Corp
•
Filing: 1963-12-05
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Granted: 1970-02-10
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Expires: 1983-12-05
Abstract
No abstract record available.
Inventors
- 👤 Frederick P Reding
- 👤 Paul S Starcher
- 👤 Edgar W Wise
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:47
CPC Classifications
C; C08; C08F; C08F210/00; C08F210/02; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/08; C08L23/0846; C08L23/0853
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A PROCESS FOR PRODUCING A COPOLYMER OF ETHYLENE AND BICYCLO(2.2.1)HEPT-2-ENE OF THE FORMULA
Claim 2
Dependent Claim
13 words
A PROCESS FOR PRODUCING A COPOLYMER OF ETHYLENE AND BICYCLO(2.2.1)HEPT-2-ENE OF THE FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-09 | 1973-08-11 | 1974-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-09 | 1977-08-11 | 1978-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-09 | 1981-08-11 | 1982-02-10 | $7700.00 | Window Closed / Lapsed |