Patent US3632707A successfully refreshed from Google Patents.
US3632707A
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US
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Molded flexible polyurethane foam
Assignee: Texaco Inc
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Filing: 1969-09-19
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Granted: 1972-01-04
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Expires: 1989-09-19
Abstract
Abstract MOLDED ONE SHOT POLYETHER URETHANE FLEXIBLE FOAMS ARE NOW POSSIBLE WITHOUT EMPLOYING A HIGH TEMPERATURE CURING STEP BY UTILIZING A FORMULATION BASED ON POLYMERIC ISOCYANATES AND CATALYZED BY A MIXED CATALYST MADE UP OF TRIMETHYLAMINOETHYLPIPERAZINE AND DIMETHYLAMINOETHANOL.
Inventors
- 👤 Doris Marvin Rice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:18
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/74; C08G18/76; C08G18/7657; C08G18/7664; C08G18/08; C08G18/16; C08G18/18; C08G18/28; C08G18/40; C08G18/48; C08G18/4804; C08G18/4812; C08G18/4829; B; B29; B29K; B29K2075/00; Y; Y10; Y10S; Y10S264/00; Y10S264/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-03 | 1975-07-05 | 1976-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-03 | 1979-07-05 | 1980-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-03 | 1983-07-05 | 1984-01-04 | $7700.00 | Window Closed / Lapsed |