US2538810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymers of diallyl esters of dicarboxylic acids with di beta, gamma, unsaturated alkenyl arylphosphonates
Assignee: Victor Chemical Works
•
Filing: 1947-10-11
•
Granted: 1951-01-23
•
Expires: 1967-10-11
Abstract
No abstract record available.
Inventors
- 👤 Toy Arthur Dock Fon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:15
CPC Classifications
C; C08; C08F; C08F30/00; C08F30/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
A THERMOSETTING, FLAME RESISTING RESIN PRODUCT COMPRISING A COPOLYMER OF A DI BETA, GAMMA UNSATURATED ALKENYL ARYLPHOSPHONATE AND A DIALLYL ESTER OF A MEMBER OF THE CLASS CONSISTING OF SATURATED ALIPHATIC DICARBOXYLIC ACIDS AND PHTHALIC ACID.
Claim 2
Dependent Claim
36 words
A THERMOSETTING, FLAME RESISTING RESIN PRODUCT COMPRISING A COPOLYMER OF A DI BETA, GAMMA UNSATURATED ALKENYL ARYLPHOSPHONATE AND A DIALLYL ESTER OF A MEMBER OF THE CLASS CONSISTING OF SATURATED ALIPHATIC DICARBOXYLIC ACIDS AND PHTHALIC ACID.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-22 | 1954-07-24 | 1955-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-22 | 1958-07-24 | 1959-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-22 | 1962-07-24 | 1963-01-23 | $7700.00 | Window Closed / Lapsed |