US2890209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymers of 3, 4-epoxycyclohexylmethyl 3, 4-epoxycyclohexanecarboxylates
Assignee: Union Carbide Corp
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Filing: 1956-05-24
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Granted: 1959-06-09
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Expires: 1976-05-24
Abstract
No abstract record available.
Inventors
- 👤 Phillips Benjamin
- 👤 Jr Frederick C Frostick
- 👤 Jr Charles W Mcgary
- 👤 Jr Charles T Patrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:28
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
20 words
A POLYMERIZED COMPOSITION OBTAINED BY HEATING IN THE PRESENCE OF AN ACID CATALYST A COMPOUND CORRESPONDING TO THE GENERAL FORMULA:
Claim 2
Dependent Claim
20 words
A POLYMERIZED COMPOSITION OBTAINED BY HEATING IN THE PRESENCE OF AN ACID CATALYST A COMPOUND CORRESPONDING TO THE GENERAL 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) | 1962-06-08 | 1962-12-08 | 1963-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-08 | 1966-12-08 | 1967-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-08 | 1970-12-08 | 1971-06-09 | $7700.00 | Window Closed / Lapsed |