US3639623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Topical pharmaceutical composition comprising certain quaternary ammonium compounds
Assignee: Siegfried AG
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Filing: 1968-04-08
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Granted: 1972-02-01
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Expires: 1988-04-08
Abstract
Abstract AN ANTIMICROBIAL PHARMACEUTICAL COMPOSITION IN PARTICULAR FOR DERMATOLOGICAL PURPOSES AND A METHOD OF TREATING WITH SUCH PHARMACEUTICAL COMPOSITIONS INFECTIONS OF THE SKIN AND MUCOUS MEMBRANES OF ANIMALS AND PARTICULARLY HUMAN BEINGS, THE SAID PHARMACEUTICAL COMPOSITIONS CONTAINING AS AN ESSENTIAL INGREDIENT A QUATERNARY AMMONIUM COMPOUND OF DICYCLOPENTYLACETIC ACID DIETHYLAMINOETHYL ESTER WITH AN ALKYL HALIDE HAVING FROM 5 TO 12 AND PARTICULARLY 6 TO 10 AND MOST PREFERABLY 8 CARBON ATOMS.
Inventors
- 👤 Wolfgang A Ritschel
- 👤 Johanna Fischer
- 👤 Theodor Wagner-Jauregg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:03
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/13; A61K31/14; A61K47/00; A61K9/00; A61K9/0012; A61K9/0014
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-31 | 1975-08-02 | 1976-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-31 | 1979-08-02 | 1980-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-31 | 1983-08-02 | 1984-02-01 | $7700.00 | Window Closed / Lapsed |