Patent US3773715A successfully refreshed from Google Patents.
US3773715A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame retardant linear polyesters
Assignee: Honeywell International Inc
•
Filing: 1972-05-01
•
Granted: 1973-11-20
•
Expires: 1992-05-01
Abstract
Abstract CERTAIN HALOGENATED AROMATIC ESTERS AND TRISUBSTITUTED PHOSPHATE ESTERS IN COMBINATION IMPART FLAME RETARDANCE TO LINEAR POLYESTERS.
Inventors
- 👤 T Largman
- 👤 H Stone
- 👤 P Koch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:12
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/49; C08K5/51; C08K5/52; C08K5/521
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) | 1976-11-19 | 1977-05-21 | 1977-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-19 | 1981-05-21 | 1981-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-19 | 1985-05-21 | 1985-11-20 | $7700.00 | Window Closed / Lapsed |