US4992469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of obtaining an antiplatelet effect
Assignee: Nagoya University
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Filing: 1985-05-29
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Granted: 1991-02-12
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Expires: 2005-05-29
Abstract
Abstract A quinone derivative of the formula (I): <IMAGE> in which A is a group of the formula (IV): <IMAGE> or a group of the formula (V): <IMAGE> in which X and Y are either the same as or different from each other and each are hydroxy, methoxy or hydrogen; and n is an integer of 1 to 5, is disclosed. The compound is useful as a medicament.
Inventors
- 👤 Takayuki Ozawa
- 👤 Morimitsu Nishikimi
- 👤 Hiroshi Suzuki
- 👤 Yoshiharu Shimomura
- 👤 Isao Yamatsu
- 👤 Shinya Abe
- 👤 Kouji Yamada
- 👤 Tohru Fujimori
- 👤 Takanobu Takamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:31
CPC Classifications
C; C07; C07C; C07C59/00; C07C59/40; C07C59/76; C07C59/90; A; A61; A61P; A61P43/00; A61P7/00; A61P7/02; A61P9/00; C07C51/00; C07C51/16; C07C51/347
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A method of treating a patient to obtain an antiplatelet effect, which comprises administering to a patient requiring such treatment, a therapeutically effective amount of a quinone derivative of the formula: ##STR21## in which A is a group of the formula: ##STR22## in which n is 2 or 3, or a pharmaceutically acceptable salt thereof, in combination with a pharmaceutically acceptable carrier.
Claim 2
Independent Claim
62 words
A method of treating a patient to obtain an antiplatelet effect, which comprises administering to a patient requiring such treatment, a therapeutically effective amount of a quinone derivative of the formula: ##STR21## in which A is a group of the formula: ##STR22## in which n is 2 or 3, or a pharmaceutically acceptable salt thereof, in combination with a pharmaceutically acceptable carrier.
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) | 1994-02-11 | 1994-08-13 | 1995-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-02-11 | 1998-08-13 | 1999-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-02-11 | 2002-08-13 | 2003-02-12 | $7700.00 | Window Closed / Lapsed |