Patent US4759190A successfully refreshed from Google Patents.
Patent US3734758A successfully refreshed from Google Patents.
US3734758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel flame retardant compositions of matter
Assignee: Universal Oil Products Co
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Filing: 1971-05-06
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Granted: 1973-05-22
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Expires: 1991-05-06
Abstract
Abstract NOVEL FLAME RETARDANT COMPOSITIONS OF MATTER COMPRRISE A MIXTURE OF AN IMIDE OF A HALO-SUBSTITUTED POLYHYDROCYCLICDICARBOXYLIC ACID, A POLYMERIC COMPOUND AND AN ANTIMONY-CONTAINING COMPOUND. THESE COMPOSITIONS OF MATTER ARE EXEMPLIFIED BY A MIXTURE OF THE N-METHYL IMIDE OF 5,6,7,8,9,9-HEXACHLORO-1,2,3,4,4A,5,8,8A-OCTAHYDRO-5,8-METHANO-2,3 -NAPHTHALENEDICARBOXYLIC ACID, POLYPROPYLENE AND ANTIMONY TRIOXIDE. THESE COMPOSITIONS OF MATTER ARE USEFUL WHERE A HIGH DEGREE OF RESISTANCE TO FLAME AND LOW VOLATILITY ARE THE REQUIRED CHARACTERISTICS OF THE PRODUCT.
Inventors
- 👤 H Cyba
- 👤 A Sparks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:56
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3412; C08K5/3415; C08K5/3417
Claims Analysis
Total Claims: 0
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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) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |