3-substituted-5-phenyl-5-pyridyl hydantoins
CA 1084057 A · Owner: Miles Laboratories, Inc. · Inventors: Strycker, Wallace G.; Havera, Herbert J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compounds having the generic structure , and their nontoxic, pharmacologically acceptable salts are useful in the chemotherapy of arrhythmias in individuals for whom such therapy is indicated. In the preceding structural formula: R1 is a 2-pyridyl, 3-pyridyl, or 4-pyridyl radical; n is an integer of the set 1-3; and R2 is a hydrogen atom a, hydroxyl, or an equivalent alkoxyl group having from 1 to 3 carbon atoms.
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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 August 19, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 19, 1997.
- 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.