US3637591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxy resin compositions
Assignee: GE Chemicals Inc
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Filing: 1970-04-27
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Granted: 1972-01-25
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Expires: 1990-04-27
Abstract
Abstract AN EPOXIDE RESIN COMPOSITION SUITABLE FOR CURING AND A PROCESS FOR PREPARING THE SAME ARE PROVIDED WHEREIN A NEUTRAL ESTER OF A PHOSPHOROUS ACID IS INCORPORATED IN A MIXTURE OF AN EPOXIDE RESIN AND A CURING AGENT FREE FROM A BF3-ORGANIC BASE COMPLEX.
Inventors
- 👤 Aubert Y Coran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:18
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/24; C08G59/40; C08G59/4007; C08G59/4071
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) | 1975-01-24 | 1975-07-26 | 1976-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-24 | 1979-07-26 | 1980-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-24 | 1983-07-26 | 1984-01-25 | $7700.00 | Window Closed / Lapsed |