Patent US3640958A successfully refreshed from Google Patents.
US3640958A
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US
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Phenolic resin compositions modified with group ii metal hydroxides or oxides and a caprolactone
Assignee: Union Carbide Corp
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Filing: 1969-04-01
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Granted: 1972-02-08
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Expires: 1989-04-01
Abstract
Abstract THIS INVENTION RELATES TO PHENOLIC RESIN COMPOSITIONS MODIFIED WITH GROUP II METAL HYDROXIDES OR OXIDES AND AND $-CAPROLACTONE, WHICH ARE CHARACTERIZED BY RELATIVELY LOW VISCOSITY AND CAN BE MOLDED INTO SHAPED ARTICLES OF DESIRED CONFIGURATION HAVING EXCELLENT CHEMICAL AND PHYSICAL PROPERITES.
Inventors
- 👤 Anthony C Soldatos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:25
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C08K5/00; C08K5/04; C08K5/15; C08K5/151
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) | 1975-02-07 | 1975-08-09 | 1976-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-07 | 1979-08-09 | 1980-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-07 | 1983-08-09 | 1984-02-08 | $7700.00 | Window Closed / Lapsed |