Patent US2641609A successfully refreshed from Google Patents.
US2641609A
Expired / Lapsed
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Therapeutic compound and method of preparing the same
Assignee: Abbott Laboratories
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Filing: 1950-05-11
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Granted: 1953-06-09
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Expires: 1970-05-11
Abstract
No abstract record available.
Inventors
- 👤 Jr Richard U Schock
- 👤 Donalee L Tabern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:54
CPC Classifications
C; C07; C07C; C07C65/00; C07C65/01; C07C65/03; C07C65/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF 2,3,5-TRIHYDROXYBENZOIC ACID, A 2,3,5-TRIALKACYL ESTER 2,3,5-TRIHYDROXYBENZOID ACID, SAID ACYL GROUP CONTAINING UP TO AND INCLUDING FOUR CARBON ATOMS, AND THEIR WATER-SOLUBLE SALTS OF A NON-TOXIC METAL SELECTED FROM THE CLASS CONSISTING OF ALKALI METAL, ALKALINE EARTH METAL, AND THE AMMONIUM ION.
Claim 2
Dependent Claim
49 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF 2,3,5-TRIHYDROXYBENZOIC ACID, A 2,3,5-TRIALKACYL ESTER 2,3,5-TRIHYDROXYBENZOID ACID, SAID ACYL GROUP CONTAINING UP TO AND INCLUDING FOUR CARBON ATOMS, AND THEIR WATER-SOLUBLE SALTS OF A NON-TOXIC METAL SELECTED FROM THE CLASS CONSISTING OF ALKALI METAL, ALKALINE EARTH METAL, AND THE AMMONIUM ION.
References Cited (Backward Citations)
US671769A
Cited
US2400433A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-08 | 1956-12-08 | 1957-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-08 | 1960-12-08 | 1961-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-08 | 1964-12-08 | 1965-06-09 | $7700.00 | Window Closed / Lapsed |