US3434981A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire-retardant polymers containing hydroxyphosphorus polymers
Assignee: Hooker Chemical Corp
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Filing: 1965-08-04
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Granted: 1969-03-25
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Expires: 1985-08-04
Abstract
No abstract record available.
Inventors
- 👤 Charles F Baranauckas
- 👤 Irving Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:25
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/667; C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/64; C08G18/6461; C08G79/00; C08G79/02; C08G79/06; C08K; C08K5/00; C08K5/49; C08K5/50; C08K5/51; C08K5/53; C08K5/5397; C08L; C08L1/00; C08L63/00
Claims Analysis
Total Claims: 0
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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) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |