Naphthalenepropionic acid derivatives as anti-inflammatory/antiallergic agents
CA 1330999 C · Owner: American Home Products Corporation · Inventors: Kreft, Anthony F. Iii; Musser, John H.; Giberson, John W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, There are disclosed compounds of the formula wherein, X is N or CR;, Z is , , , , S or O; R is hydrogen or lower alkyl;, R1 is hydrogen or lower alkyl; R2 is hydrogen or lower alkyl; or, R1 and R2 taken together form a benzene ring; and the pharmaceutically acceptable salts thereof and their use in the, treatment of leukotriene-mediated naso-bronchial obstructive airpassageway conditions, such as allergic rhinitis, allergic bronchial asthma and the like in, psoriasis, ulcerative colitis, rheumatoid arthritis as well as in other immediate hypersensitivity reactions.
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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 July 26, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 26, 2011.
- 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.