Dispenser package for viscous products
CA 2088645 A1 · Owner: Fillmore, William E. · Inventors: Krishna, Raj; Fillmore, William E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, A dispenser package for viscous products comprising a container, a hanger and pouch assembly of plastic material suspended in the container and a head including a pumping mechanism mounted on the container. The head includes a chamber with a first one way valve adjacent an opening in the hanger and pouch assembly and a second one way valve adjacent an outlet of the pumping mechanism.
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 February 2, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 2, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 2, 2015.
- 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.