Liquid painting instrument
CA 2035999 A1 · Owner: Kimura, Masaru · Inventors: Kimura, Masaru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A liquid painting instrument comprises a neck portion of cross-sectionally non-circular configuration provided on a portion near to the front end of the inner shaft; a control wall having such an passage hole that allows the neck member of the inner shaft to pass therethrough at a certain position in circumferential phase while disables it to pass therethrough at other positions in the circumferential phase said control wall, being located at a position frontward to that of the neck portion in the state unknocked; and projections provided on the front face of the neck member and each having such cam face that slides on the rear face of the control wall to displace the inner shaft rearward …
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 8, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 8, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 8, 2013.
- 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.