Bottle can member, bottle, and thread forming device
CA 2471825 C · Owner: Ito, Ryoichi · Inventors: Tasaka, Naoki; Ito, Ryoichi; Hanafusa, Tatsuya
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An effective thread number in the thread section 13 which is disposed on the mouth section 12 of the bottle 11 is formed to be 2.2. That is the thread , section 13 is , formed such that the thread section 13 should serve effectively in the mouth section 12 , such that an interval between a start position 13a and an end position 13b should be 2.0 to , 2.5. In the bottle can member 11 which has such a thread section 13 an outer , diameter , of the thread section 31 which is formed on the mouth section 12 is 28 to 38 mm. Also, the thickness of the mouth section 12 is 0.25 to 0.4 mm. The thread section 13 which has , the effective thread number 2.0 to 2.5 is formed by eight-thread per inch …
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 December 27, 2002 and granted November 27, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 27, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 27, 2024.
- 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.