Patent US2913428A successfully refreshed from Google Patents.
US2913428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame resistant unsaturated polyester composition containing an organic antimony compound
Assignee: Hooker Chemical Corp
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Filing: 1957-10-04
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Granted: 1959-11-17
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Expires: 1977-10-04
Abstract
No abstract record available.
Inventors
- 👤 Blaine O Schoepfle
- 👤 Burton S Marks
- 👤 Robitschek Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:58
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/68; C08G63/682; C08G63/6824; C08G63/6828; C08K; C08K5/00; C08K5/59
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
A POLYMERIZABLE MIXTURE COMPRISING (A) A POLYMERIZABLE UNSATURATED POLYESTER OF INGREDIENTS COMPRISING (1) A POLYCARBOXYLIC COMPOUND AND (2) A POLYHYDRIC ALCOHOL; (B) AN ETHYLENICALLY UNSATURATED MONOMER COPOLYMERUZABLE WITH (A), AND (C) A FLAME RETARDENT AGENT HAVING THE FORMULA:
Claim 2
Dependent Claim
38 words
A POLYMERIZABLE MIXTURE COMPRISING (A) A POLYMERIZABLE UNSATURATED POLYESTER OF INGREDIENTS COMPRISING (1) A POLYCARBOXYLIC COMPOUND AND (2) A POLYHYDRIC ALCOHOL; (B) AN ETHYLENICALLY UNSATURATED MONOMER COPOLYMERUZABLE WITH (A), AND (C) A FLAME RETARDENT AGENT HAVING THE FORMULA:
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) | 1962-11-16 | 1963-05-18 | 1963-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-16 | 1967-05-18 | 1967-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-16 | 1971-05-18 | 1971-11-17 | $7700.00 | Window Closed / Lapsed |