US3574127A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions prepared by treating diamine-ketone mixtures with anhydrous drying agents
Assignee: Goodyear Tire and Rubber Co
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Filing: 1969-08-22
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Granted: 1971-04-06
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Expires: 1989-08-22
Abstract
Abstract A COMPOSITION AND ITS METHOD OF PREPARATION, PREPARED BY TREATING A MIXTURE OF AT LEAST ONE DIAMINE, WHERE THE AMINO GROUPS OF THE DIAMINE ARE CONNECTED TO NON-BENZENOID CARBON ATOMS AND AT LEAST ON LIQUID KETONE WITH A DRYING AGENT INERT TO DIAMINES AND KETONES. THE COMPOSITION IS PARTICULARLY USEFUL AS A CURATIVE FOR ISOCYANATETERMINATED POLYURETHANES.
Inventors
- 👤 Anthony S Scheibelhoffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:54
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G18/088; C08G18/0885
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) | 1974-04-05 | 1974-10-05 | 1975-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-05 | 1978-10-05 | 1979-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-05 | 1982-10-05 | 1983-04-06 | $7700.00 | Window Closed / Lapsed |