US2595200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Beta-naphthyl-(2)-beta-alkyl-alpha, alpha-dialkyl-propionic acids and esters thereof
Assignee: CIBA PHARM PROD Inc
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Filing: 1949-07-06
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Granted: 1952-04-29
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Expires: 1969-07-06
Abstract
No abstract record available.
Inventors
- 👤 Miescher Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:38
CPC Classifications
C; C07; C07C; C07C57/00; C07C57/30; C07C57/38; C07C57/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF NAPHTHYL-PROPIONIC ACID AND NAPHTHYLPROPIONIC ACID ESTERS OF THE FORMULA
Claim 2
Dependent Claim
17 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF NAPHTHYL-PROPIONIC ACID AND NAPHTHYLPROPIONIC ACID ESTERS OF THE FORMULA
References Cited (Backward Citations)
CH231028A
Cited
US2437258A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-29 | 1955-10-29 | 1956-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-29 | 1959-10-29 | 1960-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-29 | 1963-10-29 | 1964-04-29 | $7700.00 | Window Closed / Lapsed |