Patent US3068193A successfully refreshed from Google Patents.
US3068193A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Esters of epoxy fatty acids and 2, 4-dihydroxy benzophenone
Assignee: Dow Chemical Co
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Filing: 1960-01-19
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Granted: 1962-12-11
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Expires: 1980-01-19
Abstract
No abstract record available.
Inventors
- 👤 Carl B Havens
- 👤 Ronald G Brookens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:18
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/38; C07D303/40; C08; C08K; C08K5/00; C08K5/04; C08K5/15; C08K5/151; C08K5/1515
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
59 words
A COMPOSITION COMPRISING AN ORGANIC SYNTHETIC POLYMERIC MATERIAL NORMALLY SUBJECT TO DEGRADATION ON EXPOSURE TO LIGHT AND HEAT SELECTED FROM THE GROUP CONSISTING OF HALOETHYLENE, STYRENE, POLYAMIDE, AND UNSATURATED POLYESTER POLYMERS AND FROM 0.5 TO 10 PERCENT OF WEIGHT OF SAID POLYMERIC MATERIAL OF A 4-MONO ESTER OF 2,4-DIHYDROXY BENZOPHENONE AND AN EPOXY FATTY ACID HAVING THE GENERAL FORMULA;
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |