N-(4-piperidinyl) bicyclic condensed 2-imidazolamine derivatives
CA 1324133 C · Owner: Janssen Pharmaceutica, Naamloze Vennootschap · Inventors: Torremans, Joseph Leo Ghislanus; Janssens, Frans Eduard; Diels, Gaston Stanislas Marcella
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel N-(4-piperidinyl)bicyclic condensed 2-imidazolamine derivatives, Novel N-(4-piperidinyl)bicyclic condensed 2imidazolamine derivatives and their pharmaceutically acceptable acid addition salts having anti-histaminic properties, compositions containing the same and methods, of treating allergic diseases in warm-blooded animals. The novel derivatives of the general formula (I), wherein A1=A2-A3=A4, R, R1, R2, L and Alk are defined herein.
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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 November 9, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 9, 2010.
- 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.