Treating agent dispensing device
CA 2023093 A1 · Owner: Adams, Brad · Inventors: Adams, Brad
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dispensing device for storing and dispensing liquids comprising a reservoir having an opening at one end thereof to receive said liquid; a discharge passage at another end thereof for discharging said liquid: a valve structure associated with said discharge passage for communicating said liquid in said reservoir through said passage in an open position and to block access of said liquid to said discharge passage in a closed position.
Read the whole patent
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 10, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 10, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 10, 2012.
- 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.