US3741941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyesters with terminal polyhydroxy groups
Assignee: EIDP Inc
•
Filing: 1971-03-03
•
Granted: 1973-06-26
•
Expires: 1991-03-03
Abstract
Abstract POLYESTERS REPRESENTED BY THE GENERAL STRUCTURE A-Z-(0-X-CO)N-O-D USEFUL AS FILM-FORMERS IN COATING COMPOSITIONS.
Inventors
- 👤 T Ashe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:50
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/06; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G18/28; C08G18/40; C08G18/42; C08G18/4266; C08G18/4269; C08G18/4283
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |