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US2744931A
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US
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Anhydrochlortetracycline
Assignee: Wyeth Holdings LLC
•
Filing: 1952-10-11
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Granted: 1956-05-08
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Expires: 1972-10-11
Abstract
No abstract record available.
Inventors
- 👤 Broschard Robert
- 👤 Krupka George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:52
CPC Classifications
C; C07; C07C; C07C233/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF ANHYDROCHLORTETRACYCLINE OF THE FORMULA
Claim 2
Dependent Claim
11 words
COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF ANHYDROCHLORTETRACYCLINE OF THE FORMULA
References Cited (Backward Citations)
US2482055A
Cited
US2516080A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-08 | 1959-11-07 | 1960-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-08 | 1963-11-07 | 1964-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-08 | 1967-11-07 | 1968-05-08 | $7700.00 | Window Closed / Lapsed |