US4871767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Medicament preparations
Assignee: TROPONWERKE & Co KG KOELN 80 GERMANY A CORP OF GERMANY GmbH
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Filing: 1987-09-04
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Granted: 1989-10-03
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Expires: 2007-09-04
Abstract
Abstract Medicament preparations contain 2-(2-hydroxyethoxy)-ethyl N-(α,α,α-trifluoro-m-tolyl)-anthranilate and dimethyl sulphoxide.
Inventors
- 👤 Bernhard Beckermann
- 👤 Hans-Dieter Dell
- 👤 Harald Horstmann
- 👤 Reinhold Kraus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:11
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/21; A61K31/215; A61K31/235; A61K31/24; A61P; A61P25/00; A61P25/04; A61P29/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
20 words
A medicament preparation comprising etofenamate and dimethyl sulphoxide, the ration of etofenamate to DMSO ranging from about 1:15 to 1:1.
Claim 2
Dependent Claim
20 words
A medicament preparation comprising etofenamate and dimethyl sulphoxide, the ration of etofenamate to DMSO ranging from about 1:15 to 1:1.
Claim 3
Dependent Claim
11 words
A medicament preparation according to claim 1, including a gel former.
Claim 4
Dependent Claim
11 words
A medicament preparation according to claim 1, including a cream former.
Claim 5
Dependent Claim
30 words
A process for the preparation of a medicament preparation according to claim 2, comprising dissolving etofenamate and DMSO in an alcohol, adding a gel former, and then adding a base.
Claim 6
Dependent Claim
25 words
A process for the preparation of a medicament preparation according to claim 3, comprising adding etofenamate and DMSO to a cream former and then homogenizing.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1992-10-02 | 1993-04-03 | 1993-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-02 | 1997-04-03 | 1997-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-02 | 2001-04-03 | 2001-10-03 | $7700.00 | Window Closed / Lapsed |