US3205284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymeric polyesters terminated with organic carbamate groups
Assignee: Goodrich Corp
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Filing: 1960-07-20
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Granted: 1965-09-07
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Expires: 1980-07-20
Abstract
No abstract record available.
Inventors
- 👤 Charles R Mcculloch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 02:43
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/44; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G18/28; C08G18/40; C08G18/60; C08G18/606; C08G18/70; C08G18/71; C08L; C08L75/00; C08L75/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
53 words
A COMPOSITION COMPRISING A HARD, TOUGH POLYESTERURETHANE AND AT LEAST ONE POLYMERIC COMPOUND CONSISTING OF A POLYESTER MADE BY AN ESTERIFICATION REACTION OF A MEMBER OF THE GROUP CONSISTING OF DICARBOXYLIC ACIDS AND ANHYDRIDES THEREOF WITH A GLYCOL, SAID POLYMERIC COMPOUND HAVING A PREDOMINANT AMOUNT OF TERMINAL ORGANIC CARBAMATE GROUPS OF THE FORMULA
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |