US4423050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
9-(1,3-Dihydroxy-2-propoxymethyl)guanine as antiviral agent
Assignee: Syntex USA LLC
•
Filing: 1982-05-24
•
Granted: 1983-12-27
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Expires: 2002-05-24
Abstract
Abstract The compound 9-(1,3-dihydroxy-2-propoxymethyl)guanine and the pharmaceutically acceptable salts thereof are useful as antiviral agents.
Inventors
- 👤 Julien P. H. Verheyden
- 👤 John C. Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:50
CPC Classifications
C; C07; C07D; C07D473/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
41 words
Method of treating viral infections in a warm blooded or a cold blooded animal having a viral infection which comprises administering an effective amount of 9-(1,3-dihydroxy-2-propoxymethyl)guanine or a pharmaceutically acceptable salt thereof or a composition containing same as an active ingredient.
Claim 2
Dependent Claim
41 words
Method of treating viral infections in a warm blooded or a cold blooded animal having a viral infection which comprises administering an effective amount of 9-(1,3-dihydroxy-2-propoxymethyl)guanine or a pharmaceutically acceptable salt thereof or a composition containing same as an active ingredient.
Claim 3
Dependent Claim
11 words
Method according to claim 1 of treating a warm blooded animal.
Claim 4
Dependent Claim
11 words
Method according to claim 1 of treating a cold blooded animal.
References Cited (Backward Citations)
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US4146715A
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US4340726A
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US4347360A
Cited
US4347360B1
Cited
US4355032A
Cited
US4355032B1
Cited
US4355032B2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-12-26 | 1987-06-27 | 1987-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-26 | 1991-06-27 | 1991-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-26 | 1995-06-27 | 1995-12-27 | $7700.00 | Window Closed / Lapsed |