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Expired Canadian patentCanada

Exhaust muffler for a motor vehicle or the like

CA 1256807 A · Owner: Cycles Peugeot · Inventors: Clerc, Michel

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

The exhaust muffler comprises a body (12) of ceramic material which is enclosed within a metal case (1) defining an inlet chamber (16) and an outlet chamber (18) for the exhaust gases. A blanket (20, 22) of refractory fibres resisting high temperatures, assembled with a very small amount of binder and substantially without water of constitution, is highly compressed between the body (12) and the case. A sealing element (24) surrounding the body (12) is interposed between the blanket and the gas outlet chamber (18). Fig. 1.

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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

  • Granted July 4, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 4, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 15, 1986
GrantedJuly 4, 1989
Term endedJuly 4, 2006
Patent numberCA 1256807 A
Classification (IPC)F01N3/28

Timeline

Timeline From CIPO dates

1987198919911993199519971999200120032005Application filedJuly 15, 1986Patent grantedJuly 4, 1989Term endedJuly 4, 2006

Sources & verification

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