Patent US2581397A successfully refreshed from Google Patents.
US2581397A
Expired / Lapsed
US
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Amino acid salts of mersalyl and method of preparing the same
Assignee: Central Pharmacal Co
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Filing: 1949-04-29
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Granted: 1952-01-08
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Expires: 1969-04-29
Abstract
No abstract record available.
Inventors
- 👤 Feinstone Wolffe Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:04
CPC Classifications
C; C07; C07F; C07F3/00; C07F3/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
AN ALIPHATIC AMINO ACID SALT OF ORTHO (HYDROXYMERCURIMETHOXYPROPYLCARBAMYL) PHENOXY ACETIC ACID.
Claim 2
Dependent Claim
11 words
AN ALIPHATIC AMINO ACID SALT OF ORTHO (HYDROXYMERCURIMETHOXYPROPYLCARBAMYL) PHENOXY ACETIC ACID.
References Cited (Backward Citations)
US978145A
Cited
US1693432A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-07 | 1955-07-09 | 1956-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-07 | 1959-07-09 | 1960-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-07 | 1963-07-09 | 1964-01-08 | $7700.00 | Window Closed / Lapsed |