Patent US3823112A successfully refreshed from Google Patents.
US3823112A
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US
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Light stabilized polymer compositions and benzotriazole stabilizers
Assignee: Vibrantz Corp
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Filing: 1972-09-01
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Granted: 1974-07-09
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Expires: 1992-09-01
Abstract
Abstract BENZOTRIAZOLES USEFUL AS LIGHT STABILIZERS OF THE FORMULA: 1-(HO-),2-(5-X-2H-BENZOTRIAZOL-2-YL),4-CL,6-(PHENYL-CH(-R) -)-BENZENE WHEREIN R IS H OR METHYL AND X IS CL OR H.
Inventors
- 👤 F Ponder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:39
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3467; C08K5/3472; C08K5/3475
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) | 1977-07-08 | 1978-01-07 | 1978-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-08 | 1982-01-07 | 1982-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-08 | 1986-01-07 | 1986-07-09 | $7700.00 | Window Closed / Lapsed |