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Expired Canadian patentCanada

Exhaust pipe of personal watercraft and connecting structure thereof

CA 2273403 C · Owner: Ito, Masaki · Inventors: Ito, Masaki; Tsumiyama, Yoshinori

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

An exhaust pipe suitable for a personal watercraft which can reduce exhaust noises, prevent a transom board from being made dirty by an exhaust gas and avoid, exposing a rider trying to get onto a deck to the exhaust gas stream directly the, exhaust pipe being provided above a water line of a transom board for discharging, an exhaust gas behind the personal watercraft the exhaust pipe projects from , the, transom board rearward and has at least a rear portion curved downward. Consequently an opening face provided on a rear end of the exhaust pipe is oriented obliquely rearward with respect to a water surface as seen from a side of, the personal watercraft.

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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, 1999 and granted July 15, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 31, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 31, 2021.
  • 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, 1999
GrantedJuly 15, 2003
Term endedMay 31, 2019
Patent numberCA 2273403 C
Classification (IPC)B63H21/34 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedMay 31, 1999Patent grantedJuly 15, 2003Term endedMay 31, 2019

Sources & verification

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