US3395121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curing epoxy resins with boron trichloride-tertiary amine complexes
Assignee: Stauffer Chemical Co
•
Filing: 1966-09-21
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Granted: 1968-07-30
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Expires: 1986-09-21
Abstract
No abstract record available.
Inventors
- 👤 John R Pfann
- 👤 Adam F Kopacki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:59
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/68; C08G59/72; C08G59/20; C08G59/22; C08G59/30; C08G59/306
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A HEAT CURABLE RESINOUS COMPOSITION COMPRISING AN EPOXY RESIN HAVING A MOLECULAR WEIGHT OF AT LEAST 150 AND HAVING A PLURALITY OF 1,2-EPOXIDE GROUPS AND A CATALYTIC AMOUNT OF THE ADDITION PRODUCT OF BORON TRICHLORIDE AND A TRIALKYL AMINE OF THE FORMULA:
Claim 2
Dependent Claim
42 words
A HEAT CURABLE RESINOUS COMPOSITION COMPRISING AN EPOXY RESIN HAVING A MOLECULAR WEIGHT OF AT LEAST 150 AND HAVING A PLURALITY OF 1,2-EPOXIDE GROUPS AND A CATALYTIC AMOUNT OF THE ADDITION PRODUCT OF BORON TRICHLORIDE AND A TRIALKYL AMINE OF THE FORMULA:
References Cited (Backward Citations)
US2909494A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-30 | 1972-01-29 | 1972-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-30 | 1976-01-29 | 1976-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-30 | 1980-01-29 | 1980-07-30 | $7700.00 | Window Closed / Lapsed |