Dispensing cartridge
CA 2264768 C · Owner: Morris, David Paul · Inventors: Dang, Nguyen Thai; Morris, David Paul
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dispensing cartridge (10) is provided for viscous liquids such as sealants. , The cartridge (10) includes an elongated tubular cylindrical housing (12) defining an elongated interior chamber (16) having a cylindrical interior wall (14). A dispensing nozzle (18) is formed at one end (20) of the housing (12) and this dispensing nozzle (18) has an opening (22) open to the housing chamber (16) which is less in cross-sectional size than the cross-sectional size of the housing chamber (16). A substantially semi-spherical wall portion (26) extends between the cylindrical wall (14) of the housing (12) and the nozzle opening (22) while at least one reinforcing rib (28) extends outwardly …
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 September 12, 1997 and granted December 3, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 12, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 12, 2019.
- 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.