2-thiocarbamoyloxy and 2-carbamoyloxy derivatives of cyclopentyl-heptan(ene)oic acid as therapeutic agents
CA 2423474 A1 · Owner: Allergan, Inc. · Inventors: Burk, Robert M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to the use of cyclopentane heptan(ene)oic acid 2-, thiocarbamoyloxy and carbamoyloxy as therapeutic agents e.g. as ocular hypotensives. The compounds used in accordance with the invention are represented by formula (I) wherein a wavy segments indicate either the alpha (.alpha.) or beta (.beta.) configuration; the dashed bond represents a double bond or a single bond; Z is O or S; Ar is selected from the group consisting of aryl or heteroaryl radicals having from 4 to 10 carbon atoms and substituted derivatives of said aryl and heteroaryl radicals; n is 0 or an integer of from 1 to 4; x and y are 1 or 0 provided that when x is 1, y is 0 , and when x is 0 y is 1; …
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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
- Filed August 22, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 22, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 22, 2023.
- 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.