US3776887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame retardant polyester products prepared from halo-substituted-aryl-oxy-alkanols
Assignee: Celanese Corp
•
Filing: 1972-01-04
•
Granted: 1973-12-04
•
Expires: 1992-01-04
Abstract
Abstract FLAME RETARDANCY IMPARTED TO POLYESTER PRODUCTS BY INCORPORATING THERIN A SMALL BUT EFFECTIVE AMOUNT OF A HALOSUBSTITUTED-ARYLOXY-ALKANE DIOL COMONOMER.
Inventors
- 👤 C Juelke
- 👤 L Trapasso
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:12
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/68; C08G63/682; C08G63/6824; C08G63/6826; Y; Y10; Y10S; Y10S260/00; Y10S260/24
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) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |