Patent US2837497A successfully refreshed from Google Patents.
US2837497A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amine curing agent for epoxy resins
Assignee: Furane Plastics Inc
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Filing: 1956-09-04
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Granted: 1958-06-03
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Expires: 1976-09-04
Abstract
No abstract record available.
Inventors
- 👤 Delmonte John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:56
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/62; C08G59/621; C08G59/623
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A CURING AGENT FOR EPOXY RESINSOF THE POLYGLYCIDAL ETHER TYPE COMPRISING THE REACTION PRODUCT OF A MIXTURE OF A PRIMARY AMINE SELECTED FROM THE GROUP CONSISTING OF PHENYLENE DIAMINE, METHYL DIANILINE, AND TRIAMINO TRIPHENYL METHANE, ABD A TERTIARY AMINE BEING SELECTED FROM THE GROUP CONSISTING OF DIMETHYL AMINO METHYL PHENOL AND TRI-DIMETHYL AMINO METHYL PHENOL, SAID REACTION PRODUCT RESULTING FROM HEATING SAID MIXTURE TO AT LEAST 210* F. UNTIL ALL OF THE EVOLVED GAS HAS BEEN REMOVED.
Claim 2
Dependent Claim
77 words
A CURING AGENT FOR EPOXY RESINSOF THE POLYGLYCIDAL ETHER TYPE COMPRISING THE REACTION PRODUCT OF A MIXTURE OF A PRIMARY AMINE SELECTED FROM THE GROUP CONSISTING OF PHENYLENE DIAMINE, METHYL DIANILINE, AND TRIAMINO TRIPHENYL METHANE, ABD A TERTIARY AMINE BEING SELECTED FROM THE GROUP CONSISTING OF DIMETHYL AMINO METHYL PHENOL AND TRI-DIMETHYL AMINO METHYL PHENOL, SAID REACTION PRODUCT RESULTING FROM HEATING SAID MIXTURE TO AT LEAST 210* F. UNTIL ALL OF THE EVOLVED GAS HAS BEEN REMOVED.
References Cited (Backward Citations)
US2615919A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-02 | 1961-12-02 | 1962-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-02 | 1965-12-02 | 1966-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-02 | 1969-12-02 | 1970-06-03 | $7700.00 | Window Closed / Lapsed |