US3409616A
Expired / Lapsed
US
⏱️ 0.0 years remaining
4-oxo-10-hydroxy-1, 2, 3, 4-tetrahydroanthracene-2-(alpha-amino)acetates
Assignee: Pfizer Inc
•
Filing: 1966-07-27
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Granted: 1968-11-05
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Expires: 1986-07-27
Abstract
No abstract record available.
Inventors
- 👤 Lloyd H Conover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:48
CPC Classifications
C; C07; C07C; C07C255/00; C07C37/00; C07C37/01; C07C37/055; C07C49/00; C07C49/76; C07C49/84; C07C51/00; C07C51/09; C07C51/16; C07C51/31; C07C51/34; C07C51/347; C07C51/36; C07C51/363; C07C51/377; C07C57/00; C07C57/30; C07C57/42; C07C59/00; C07C59/40; C07C59/42; C07C59/52; C07C59/58; C07C59/64; C07C59/66; C07C59/68; C07C59/76; C07C59/90; C07D; C07D261/00; C07D261/02; C07D261/06; C07D261/10; C07D261/18; C07D261/20; C09; C09B; C09B5/00; C09B5/24; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/886; Y10S435/889
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3167579A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |