Patent US3245922A successfully refreshed from Google Patents.
US3245922A
Expired / Lapsed
US
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Phosphorus-containing urethane compositions
Assignee: Hooker Chemical Corp
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Filing: 1961-06-01
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Granted: 1966-04-12
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Expires: 1981-06-01
Abstract
No abstract record available.
Inventors
- 👤 Worsley Michael
- 👤 Blaine O Schoepfle
- 👤 Raymond R Hindersinn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:39
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/38; C08G18/3878; C08G18/40; C08G18/4009; C08G18/4045; C08G18/67; C08G18/68; C08G18/683; C08G18/686; Y; Y10; Y10S; Y10S528/00; Y10S528/905
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
15 words
THE PHOSPHORUS-CONTAINING REACTION PRODUCT OF A MIXTURE COMPRISING (A) A PHOSPHORUS COMPOUND HAVING THE FORMULA
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) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |