Blow-molded bottle-shaped container made of synthetic resin
CA 2000959 C · Owner: Ota, Akiho · Inventors: Ota, Akiho; Sugiura, Hiroaki; Hayashi, Yoshiaki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A biaxially blow-molded bottle-shaped container having a body with a plurality of longitudinally-extending absorbing panel portions uniformly disposed about a circumference of the body and a lower end of the body between the body and a leg of the body. Two circumferential ribs are provided and externally swelled on the lower end of the body thereby providing a largest diameter of the container; a diameter of the lower end of the body being smaller than the largest diameter. Upper and lower portions of those circumferential ribs comprise rib walls in a form of a tapered wall, and the circumferential ribs each have sufficient vertical height such that, when pressed against an adjacent …
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 October 18, 1989 and granted January 12, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 18, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 18, 2011.
- 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.