Patent US4094908A successfully refreshed from Google Patents.
US4094908A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alpha-substituted benzhydrol derivatives
Assignee: Richter Gedeon Vegyeszeti Gyar Nyrt
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Filing: 1976-09-09
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Granted: 1978-06-13
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Expires: 1996-09-09
Abstract
Abstract The invention relates to new α-substituted benzhydrols and pharmaceutically acceptable acid addition salts or quaternary ammonium salts thereof with enzyme promoting or inhibiting effects;
Inventors
- 👤 Edit Toth
- 👤 Jozsef Torley
- 👤 Szabolcs Szeberenyi
- 👤 Eva Palosi
- 👤 Laszlo Szporny
- 👤 Sandor Gorog
- 👤 Csilla Meszaros
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:02
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/12; C07D295/135; C07C; C07C255/00; C07C33/00; C07C33/34; C07C39/00; C07C39/205; C07C39/21; C07C65/00; C07C65/01
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
7 words
4-(β-diethylaminoethoxy)-α-ethyl-benzyhydrol for a pharmaceutically acceptable salt thereof.
Claim 2
Dependent Claim
7 words
4-(β-diethylaminoethoxy)-α-ethyl-benzyhydrol for a pharmaceutically acceptable salt thereof.
Claim 3
Dependent Claim
1 words
3,4,5-trimethoxy-α-ethyl-benzyhydrol.
Claim 4
Dependent Claim
1 words
3,4,5-trimethoxy-α-ethyl-benzyhydrol.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-12 | 1981-12-12 | 1982-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-12 | 1985-12-12 | 1986-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-12 | 1989-12-12 | 1990-06-13 | $7700.00 | Window Closed / Lapsed |