Patent US5094943A successfully refreshed from Google Patents.
Patent US3055888A successfully refreshed from Google Patents.
US3055888A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-alkylmercapto-9-[2'-(n-alkylpiperidyl-2" and pyrrolidyl-2")-ethylidene-1']-thiaxanthenes
Assignee: Individual
•
Filing: 1961-01-09
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Granted: 1962-09-25
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Expires: 1981-01-09
Abstract
No abstract record available.
Inventors
- 👤 Renz Jany
- 👤 Bourquin Jean-Pierre
- 👤 Griot Rudolf
- 👤 Schwarb Gustav
- 👤 Ruesch Leo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:10
CPC Classifications
C; C07; C07D; C07D409/00; C07D409/02; C07D409/06; A; A61; A61K; A61K31/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A MEMBER OF THE CLASS CONSISTING OF THIAXANTHENE COMPOUNDS OF THE FORMULA I,
Claim 2
Dependent Claim
13 words
A MEMBER OF THE CLASS CONSISTING OF THIAXANTHENE COMPOUNDS OF THE FORMULA I,
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) | 1965-09-24 | 1966-03-26 | 1966-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-24 | 1970-03-26 | 1970-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-24 | 1974-03-26 | 1974-09-25 | $7700.00 | Window Closed / Lapsed |