Patent US3546229A successfully refreshed from Google Patents.
US3546229A
Expired / Lapsed
US
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Derivatives of acetic acid
Assignee: Sandoz AG
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Filing: 1967-07-14
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Granted: 1970-12-08
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Expires: 1987-07-14
Abstract
No abstract record available.
Inventors
- 👤 Rudolf Griot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:41
CPC Classifications
C; C07; C07D; C07D211/00; C07D211/04; C07D211/06; C07D211/36; C07D211/40; C07D211/44; C07D211/46; C07C; C07C51/00; C07C51/09; C07C51/347; C07C51/377; C07C51/38; C07C51/41; C07C51/412; C07C51/58; C07C51/60; C07C59/00; C07C59/40; C07C59/58; C07C59/64; C07C59/66; C07C59/68; C07C59/70
Claims Analysis
Total Claims: 0
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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) | 1973-12-07 | 1974-06-08 | 1974-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-07 | 1978-06-08 | 1978-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-07 | 1982-06-08 | 1982-12-08 | $7700.00 | Window Closed / Lapsed |