US3598757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cyclic borate antioxidant mixture
Assignee: Universal Oil Products Co
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Filing: 1968-12-02
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Granted: 1971-08-10
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Expires: 1988-12-02
Abstract
Abstract SYNERGISTIC MIXTURE OF A CYCLIC BORATE CONTAINING ONE NITROGEN IN THE RING AND AT LEAST ONE OF A HYDROXYPHENONE, AN N-HYDROXYPHENYL-BENZOTRIAZOLE AND A SALICYLIC ACID ESTER. THIS MIXTURE IS USED AS AN ADDITIVE TO STABILIZER PLASTIC FROM DETERIORATION DUE TO WEATHERING, OXIDATION, HEAT, ETC.
Inventors
- 👤 Henryk A Cyba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:06
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/55
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) | 1974-08-09 | 1975-02-08 | 1975-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-09 | 1979-02-08 | 1979-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-09 | 1983-02-08 | 1983-08-10 | $7700.00 | Window Closed / Lapsed |