US3732342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brominated phosphates
Assignee: Dow Chemical Co
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Filing: 1970-11-02
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Granted: 1973-05-08
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Expires: 1990-11-02
Abstract
Abstract COMPOUNDS USEFUL AS FIRE RETARDANT PLASTICIZERS FOR POLYVINYL CHLORIDE AND AS FIRE RETARDANTS FOR LATEX HAVING THE FORMULA ((BR-CH2)3-C-CH2-O-(CH(-R)-CH(-R'')-O)N)3-P=O WHEREIN R AND R'' ARE INDEPENDENTLY FOR EACH OF THE N UNITS H OR METHYL PROVIDED THAT BOTH R AND R'' ARE NOT METHYL IN ANY ONE UNIT, AND N IS AN INTEGER OF 1-10 HAVE BEEN DISCOVERED.
Inventors
- 👤 C Gibbons
- 👤 C Reineke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:36
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/091; C08; C08G; C08G65/00; C08G65/02; C08G65/26; C08G65/2639; C08G65/32; C08G65/321; C08G65/327; C08K; C08K5/00; C08K5/04; C08K5/06; C08K5/49; C08K5/51; C08K5/52; C08K5/521
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-07 | 1976-11-06 | 1977-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-07 | 1980-11-06 | 1981-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-07 | 1984-11-06 | 1985-05-08 | $7700.00 | Window Closed / Lapsed |