Patent US3723335A successfully refreshed from Google Patents.
US3723335A
Expired / Lapsed
US
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Isomeric mixture of dibromocresyl glycidyl ether
Assignee: Nippon Kayaku Co Ltd
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Filing: 1971-07-23
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Granted: 1973-03-27
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Expires: 1991-07-23
Abstract
Abstract THE PRESENT INVENTION RELATES TO AN ISOMERIC MIXTURE OF DIBFOMOCRESYL GLYCIDYL ETHER, COMPOSED OF 65 TO 95% OF META-ISOMER, 0 TO 25% OF ORTHO-ISOMER AND 0 TO 25% PARA-ISOMER, WHICH, WHEN COMBINED WITH AN EPOXY RESIN COMPOSITION PRIOR TO CURING, CONFERS FIRE-RESISTANCE ON THE CURED PRODUCT.
Inventors
- 👤 T Tanaka
- 👤 K Mizoguchi
- 👤 H Nagaoka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:08
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/12; C07D303/18; C07D303/20; C07D303/22; C08; C08G; C08G59/00; C08G59/14; C08G59/1433; C08G59/1438; C08G59/145; C08G59/18; C08G59/20; C08G59/22
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) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |