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US3546253A
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Bromine-containing polyol ethers and method of preparation
Assignee: Celanese Corp
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Filing: 1967-10-30
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Granted: 1970-12-08
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Expires: 1987-10-30
Abstract
No abstract record available.
Inventors
- 👤 Sammy Carpenter
- 👤 Enrique R Witt
- 👤 Joseph J Cahill Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:05
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/38; C08G18/3802; C08G18/3804; C08G18/3806; C08G18/381; C07; C07C; C07C43/00; C07C43/02; C07C43/03; C07C43/04; C07C43/13; C07C43/137; C07D; C07D309/00; C07D309/02; C07D309/08; C07D309/10; C08G18/40; C08G18/48; C08G18/50; C08G18/5003; C08G18/5006; C08G18/5012
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2585035A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-07 | 1974-06-08 | 1974-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-07 | 1978-06-08 | 1978-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-07 | 1982-06-08 | 1982-12-08 | $7700.00 | Window Closed / Lapsed |