US2589937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of new basic esters of 1-aryl-cyclopentane-1-monothiocarboxylic acids
Assignee: Novartis AG
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Filing: 1948-05-17
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Granted: 1952-03-18
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Expires: 1968-05-17
Abstract
No abstract record available.
Inventors
- 👤 Hafliger Franz
- 👤 Martin Henry
- 👤 Denss Rolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:39
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/10; C07D295/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
20 words
PROCESS FOR THE MANUFACTURE OF COMPOUNDS SUITABLE AS MEDICINAL REMEDIES, COMPRISING BRINGING INTO CONTACT AN ACID CHLORIDE OF THE FORMULA
Claim 2
Dependent Claim
20 words
PROCESS FOR THE MANUFACTURE OF COMPOUNDS SUITABLE AS MEDICINAL REMEDIES, COMPRISING BRINGING INTO CONTACT AN ACID CHLORIDE OF THE FORMULA
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) | 1955-03-18 | 1955-09-17 | 1956-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-18 | 1959-09-17 | 1960-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-18 | 1963-09-17 | 1964-03-18 | $7700.00 | Window Closed / Lapsed |