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Patent US3776978A successfully refreshed from Google Patents.
US3776978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxy resins containing phenolic accel-erators and organic titanates
Assignee: Individual
•
Filing: 1972-01-07
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Granted: 1973-12-04
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Expires: 1992-01-07
Abstract
Abstract THE CURE RATE OF EPOXY RESIN CONTAINING 1,2 EPOXY GROUPS AND HAVING MORE THAN ONE EPOXIDE GROUP PER MOLECULE CAN BE CONTROLLABLY VARIED BY THE UTILIZATION OF A HARDENER COMPRISING A MIXTURE OF A PHENOL AND AN ORGANIC TITANATE CONTAINING ONLY TITANIUM-OXYGEN PRIMARY VALENCE BONDS WHEREIN THE PHENOL IS PRESENT IN QUANTITIES LESS THAN 15% BY WEIGHT OF THE EPOXY RESIN, AND THE ORGANIC TITANATE IS PRESENT IN QUANTITIES LESS THAN 10% BY WEIGHT OF THE EPOXY RESIN.
Inventors
- 👤 M Markovitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:46
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/62; C08G59/621; C08G59/4007; C08G59/4092; H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/40; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2936; Y10T428/31504; Y10T428/31511; Y10T428/31515; Y10T428/31522
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) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |