US3779950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxy resin compositions
Assignee: General Electric Co
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Filing: 1972-01-03
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Granted: 1973-12-18
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Expires: 1992-01-03
Abstract
Abstract THE SHELF LIFE OF EPOXY RESIN COMPOSITIONS USEFUL FOR ADHESIVES, VARNISHES, INJECTION MOLDING AND THE LIKE AND CONTAINING PHENOLIC CURE ACCELERATOR IS INCREASED BY BLOCKING ALL OR PART OF THE HYDROXYL GROUPS OF THE CURE ACCELERATOR WITH AROMATIC MONOISOCYANATE.
Inventors
- 👤 L Kohn
- 👤 R Smearing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:19
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/68; C08G59/70; C08G59/14; C08G59/1433; C08G59/1477; C08G59/40; C08G59/4007; C08G59/4092
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) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |