US2877204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame resistant polyester composition containing a halogenated phosphonate
Assignee: Wyeth Holdings LLC
•
Filing: 1956-06-01
•
Granted: 1959-03-10
•
Expires: 1976-06-01
Abstract
No abstract record available.
Inventors
- 👤 Duhnkrack George Bliss
- 👤 Dugliss Charles Hosea
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:05
CPC Classifications
C; C08; C08F; C08F283/00; C08F283/01; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/53; C08K5/5317; C08K5/5333; C08K5/5337
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A COMPOSITION OF MATTER WHICH COMPRISES A POLYMERIZABLE UNSATURATED LINEAR POLYESTER OBTAINED BY THE ESTERIFICATION OF AN ALPHA, BETA-ETHYLENICALLY UNSATURATED POLYCARBOXYLIC ACID AND A SATURATED DIHYLIC ALCOHOL, A COPOLYMERIZABLE MONOMER CONTAINING A CH2=C< GROUP AND HAVING A BOILINAG POINT OF AT LEAST 60* C. AND A PHOSPHONATE HAVING THE STRUCTURE FORMULA:
Claim 2
Dependent Claim
51 words
A COMPOSITION OF MATTER WHICH COMPRISES A POLYMERIZABLE UNSATURATED LINEAR POLYESTER OBTAINED BY THE ESTERIFICATION OF AN ALPHA, BETA-ETHYLENICALLY UNSATURATED POLYCARBOXYLIC ACID AND A SATURATED DIHYLIC ALCOHOL, A COPOLYMERIZABLE MONOMER CONTAINING A CH2=C< GROUP AND HAVING A BOILINAG POINT OF AT LEAST 60* C. AND A PHOSPHONATE HAVING THE STRUCTURE FORMULA:
References Cited (Backward Citations)
US2714100A
Cited
US2682522A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-09 | 1962-09-08 | 1963-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-09 | 1966-09-08 | 1967-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-09 | 1970-09-08 | 1971-03-10 | $7700.00 | Window Closed / Lapsed |