Compound having hypoxanthine base, its use and process for producing it
CA 1294572 C · Owner: Nippon Kayaku Kabushiki Kaisha · Inventors: Tomizawa, Takayuki; Hasegawa, Shigeru; Hoshino, Hiroo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a novel compound having hypoxanthine base represented by the following formula:, as well as to use of said compound and process for producing said compound. The novel compound of the present invention has an immunosuppressive and antiviral actions and is expected to be useful as a medical drug.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted January 21, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 21, 2009.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.