8.beta.-ALKYL-SUBSTITUTED MORPHINAN-6-ONE COMPOUNDS
CA 1093070 A · Owner: Miles Laboratories, Inc. · Inventors: Kotick, Michael P.; Polazzi, Joseph O.; Schut, Robert N.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Docket No. 11758, 8.beta.-ALKYL-SUBSTITUTED MORPHINAN-6-ONE COMPOUNDS ABSTRACT, The morphinan-6-one compounds substituted in the 3-position by a methoxy or hydroxy group in the 8-position, by a .beta.-methyl, ethyl or propyl group and in the 17-position by a cyclopropylmethyl or cyclobutylmethyl group are novel and possess analgesic and narcotic antagonist activity. Methods and intermediates useful for preparation of these compounds and therapeutic methods are described.
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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 January 6, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 6, 1998.
- 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.