US3522266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
5-hydroxythiazolidines
Assignee: Individual
•
Filing: 1966-08-22
•
Granted: 1970-07-28
•
Expires: 1986-08-22
Abstract
No abstract record available.
Inventors
- 👤 Robert Burns Woodward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:52
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6536; C07F9/6539; C07C; C07C45/00; C07C45/51; C07C45/511; C07C45/515; C07C51/00; C07C51/42; C07C51/487; C07C51/493; C07D; C07D277/00; C07D277/02; C07D277/04; C07D277/06; C07D499/00; C07F9/28; C07F9/50; C07F9/53; C07F9/54; C07F9/5463
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2450784A
Cited
US2480079A
Cited
US2580931A
Cited
US2721869A
Cited
US2952673A
Cited
US3159617A
Cited
US3399207A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-27 | 1974-01-26 | 1974-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-27 | 1978-01-26 | 1978-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-27 | 1982-01-26 | 1982-07-28 | $7700.00 | Window Closed / Lapsed |