US3554967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Accelerated epoxy-amine resinous compositions catalyzed with -sh yielding material
Assignee: Aerojet Rocketdyne Holdings Inc
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Filing: 1969-01-21
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Granted: 1971-01-12
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Expires: 1989-01-21
Abstract
Abstract A SULFUR COMPOUND, WHICH CAN FORM A CURE-ACCELARATING, SH-CONTAINING COMPOUND IN THE PRESENCE OF AN AMINE CURING AGENT, E.G., ETHYLENE TRITHIOCARBONATE, IS ADDED TO AN EPOXY RESIN COMPOSITION. THE RESULTING COMPOSITION IS STABLE, BUT WILL UNDERGO RAPID CURING AT LOW TEMPERATURES UPON THE ADDITION OF AN AMINE CURING AGENT.
Inventors
- 👤 Heinz Uelzmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:36
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/66; C08G59/4007; C08G59/4064; C08G59/50; C08G59/56; C08G59/68; C08G59/687
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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |