Bottle of synthetic resin
CA 2136348 C · Owner: Yoshino Kogyosho Co. Ltd. · Inventors: Akiyama, Yoshio; Yamanaka, Nobuo; Fujie, Takashi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a bottle made of synthetic resin for containing such as various liquids with an object of providing a bottle which is easily fractured so that the bottle is easily handled for disposing or recycling. The bottle comprises a plurality of fracturing walls each formed in a longitudinal band shape extending along the direction of the central axis of the bottle and main walls each disposed between the fracturing walls. The fracturing walls are made of a first material and a second material, the first material being a synthetic resin which is the same as a synthetic resin forming the main walls and/or has good compatibility with the synthetic resin of the main …
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 March 15, 1994 and granted June 10, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 15, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 15, 2016.
- 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.