Patent US3294748A successfully refreshed from Google Patents.
US3294748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curing agents for epoxy resins
Assignee: Westinghouse Electric Corp
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Filing: 1962-05-23
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Granted: 1966-12-27
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Expires: 1982-05-23
Abstract
No abstract record available.
Inventors
- 👤 Jr Dow A Rogers
- 👤 Newton N Goldberg
- 👤 Jr Clarence L Zeise
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:20
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/4007; C08G59/4014; C08G59/4035; C08G59/4021
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
22 words
A LIQUID COMPOSITION OF MATTER COMPRISING AN ADMIXTURE OF A POLYGLYCIDYL ETHER OF A POLYCHYDRIC PHENOL, A HARDENING COMPOUND HAVING THE FORMULA:
Claim 2
Dependent Claim
22 words
A LIQUID COMPOSITION OF MATTER COMPRISING AN ADMIXTURE OF A POLYGLYCIDYL ETHER OF A POLYCHYDRIC PHENOL, A HARDENING COMPOUND HAVING THE FORMULA:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |