US2773878A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cycloserine and production thereof
Assignee: Pfizer Inc
•
Filing: 1952-03-05
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Granted: 1956-12-11
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Expires: 1972-03-05
Abstract
No abstract record available.
Inventors
- 👤 Gilbert M Shull
- 👤 John B Routien
- 👤 Alexander C Finlay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:14
CPC Classifications
C; C09; C09B; C09B3/00; C09B3/60; C09B3/64; C09B3/68; C07; C07D; C07D261/00; C07D261/02; C07D261/04; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/886; Y10S435/899
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
36 words
CYCLOSERINE, AN AMPHOTERIC SUBSTANCE EFFECTIVE IN INHIBITING THE GROWTH OF MYCOBACTERIA, WHICH IS HIGHLY SOLUBLE IN WATER AND SLIGHTLY SOLUBLE IN METHANOL AND WHICH CONTAINS THE ELEMENTS CARBON, HYDROGEN, NITROGEN, AND OXYGEN IN THE FOLLOWING PROPORTIONS:
References Cited (Backward Citations)
US2528022A
Cited
US2442230A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-11 | 1960-06-11 | 1960-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-11 | 1964-06-11 | 1964-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-11 | 1968-06-11 | 1968-12-11 | $7700.00 | Window Closed / Lapsed |