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Expired Canadian patentCanada

An aerosol container with a cap

CA 2417301 C · Owner: Mizushima, Hiroshi · Inventors: Mizushima, Hiroshi; Hayakawa, Shigeru; Goto, Takayuki

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

There is provided an aerosol container for automatic gas release by an easy action at the time of disposal. The aerosol container having a container body and a , cap; said container body comprising an upstanding discharge head; said cap comprising a peripheral wall and a top wall and being adapted to fit on , an upper part of the container body a portion of the peripheral wall or the top wall , defining a folding plate surrounded by a breaking line and a bendable line such that , the folding plate may be bent inwardly about the bendable line after breakage of, the breaking line, the cap also comprising a stopper for fixing the folding plate into , an inwardly bent position such that …

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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 May 31, 2002 and granted September 27, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 31, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 31, 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.
FiledMay 31, 2002
GrantedSeptember 27, 2011
Term endedMay 31, 2022
Patent numberCA 2417301 C
Classification (IPC)B65D83/40 +1 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedMay 31, 2002Patent grantedSep 27, 2011Term endedMay 31, 2022

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.