US3594347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyesters containing aryl phosphinates
Assignee: Honeywell International Inc
•
Filing: 1968-09-05
•
Granted: 1971-07-20
•
Expires: 1988-09-05
Abstract
Abstract LINEAR, FIBER-FORMING POLYESTERS OF REDUCED COLOR AND RESISTANT TO YELLOWING CAUSED BY ACTINIC OR THERMAL DEGRADATION OR PREPARED BY PROVIDING A SMALL BUT EFFECTIVE AMOUNT OF CERTAIN ARYL PHOSPHINIC ACIDS OR SALTS THEREOF IN THE POLYESTER.
Inventors
- 👤 Stanley D Lazarus
- 👤 Ian C Twilley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:27
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/78; C08G63/82; C08G63/87; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/53; C08K5/5313
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |