US3275578A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame resistant urethane polymer compositions of improved dimensional stability containing a pentahalophenyl ester and an antimony compound
Assignee: Dow Chemical Co
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Filing: 1963-12-12
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Granted: 1966-09-27
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Expires: 1983-12-12
Abstract
No abstract record available.
Inventors
- 👤 Joseph J Pedjac
- 👤 Charles T Pumpelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:06
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0014; C08J9/0023; C08K; C08K3/00; C08K3/10; C08K3/11; C08K5/00; C08K5/04; C08K5/10; C08K5/101; C08J2375/00; C08J2375/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
59 words
A SELF-EXTINGUISHING FOAM HAVING IMPROVING DIMENSIONAL STABILITY COMPRISING A NORMALLY FLAMMABLE POLYURETHANE RESIN IN INTIMATE ADMIXTURE WITH FROM ABOUT 2 TO ABOUT 5 PERCENT, BASED ON THE WEIGHT OF THE FOAM, OF AN ANTIMONY COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE OXIDE, CHLORIDE, BROMIDE, IODIDE, OXYCHLORIDE AND SULFIDE; AND AN AMOUNT OF A PENTAHALOPHENYL ESTER HAVING THE FORMULA
References Cited (Backward Citations)
US3164558A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |