US2953545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for curing glycidyl polyethers and products produced thereby
Assignee: Westinghouse Electric Corp
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Filing: 1958-11-18
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Granted: 1960-09-20
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Expires: 1978-11-18
Abstract
No abstract record available.
Inventors
- 👤 Arnold B Finestone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:07
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/4007; C08G59/4085; C07; C07F; C07F7/00; C07F7/02; C07F7/04; C07F7/08; C07F7/18; C07F7/1804; C08G59/4078
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A COMPOSITION OF MATTER COMPRISING (1) A REACTIVE GLYCIDYL POLYETHER DERIVED FROM A DIHYDRIC PHENOL AND AN EPIHALOHYDRIN AND (2) A CURING CATALYST THEREFOR COMPRISING A MIXTURE OF (A) FROM 2% TO 20% BY WEIGHT, BASED ON THE WEIGHT OF THE POLYETHER, OF AT LEAST ONE BORON ESTER SELECTED FROM THE GROUP CONSISTING OF ESTERS OF BORIC ACID HAVING THE FORMULA
Claim 2
Dependent Claim
61 words
A COMPOSITION OF MATTER COMPRISING (1) A REACTIVE GLYCIDYL POLYETHER DERIVED FROM A DIHYDRIC PHENOL AND AN EPIHALOHYDRIN AND (2) A CURING CATALYST THEREFOR COMPRISING A MIXTURE OF (A) FROM 2% TO 20% BY WEIGHT, BASED ON THE WEIGHT OF THE POLYETHER, OF AT LEAST ONE BORON ESTER SELECTED FROM THE GROUP CONSISTING OF ESTERS OF BORIC ACID HAVING THE FORMULA
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) | 1963-09-20 | 1964-03-21 | 1964-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-20 | 1968-03-21 | 1968-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-20 | 1972-03-21 | 1972-09-20 | $7700.00 | Window Closed / Lapsed |