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US3452081A
Expired / Lapsed
US
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Phenoxy substituted 2-alkenoic acids
Assignee: Merck and Co Inc
•
Filing: 1965-05-27
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Granted: 1969-06-24
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Expires: 1985-05-27
Abstract
No abstract record available.
Inventors
- 👤 James M Sprague
- 👤 William A Bolhofer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:57
CPC Classifications
C; C07; C07C; C07C323/00; C07C51/00; C07C51/09; C07C59/00; C07C59/40; C07C59/58; C07C59/64; C07C59/66; C07C59/68
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2602090A
Cited
US3262850A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |