Patent US3652718A successfully refreshed from Google Patents.
US3652718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curing of polyester compositions
Assignee: Adama Makhteshim Ltd
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Filing: 1971-01-13
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Granted: 1972-03-28
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Expires: 1991-01-13
Abstract
Abstract UNCURED POLYESTER-ACCELERATOR COMPSOTIONS. THE COMPOSITIONS CONTAIN UNSATURATED POLYESTER RESIN, WATER AND A VANADIUM ACCELERATOR OBTAINED BY DISSOLVING VANADIUM COMPOUND OXIDE IN CONCENTRATED AQUEOUS HYDROCHLORIC ACID AND ADMIXING TO THE RESULTING SOLUTION AN ALKYL ESTER OF PHOSPHOROUS ACID. THERE IS ALSO PROVIDED A METHOD OF CURING UNSATURATED POLYESTER RESIN WHEREIN SAID RESIN IS ADMIXED WITH WATER AND SAID VANADIUM ACCELERATOR AND AN ORGANIC PEROXIDE.
Inventors
- 👤 Shoshana Abrahami
- 👤 Aharon Molcho
- 👤 Reuven Roman Wachs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:03
CPC Classifications
C; C08; C08F; C08F283/00; C08F283/01
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) | 1975-03-28 | 1975-09-27 | 1976-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-28 | 1979-09-27 | 1980-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-28 | 1983-09-27 | 1984-03-28 | $7700.00 | Window Closed / Lapsed |