Patent Yard Sign in
Expired Canadian patentCanada

Radiator with leak detecting and leak-isolating system

CA 2012177 C · Owner: Stokes, Bennie J. · Inventors: Stokes, Bennie J.; Stokes, Dyrell K.

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

A radiator is provided including a tube core having opposite ends opening into and from which corresponding end tanks are supported. The tube core is divided into a plurality of discreet tube core sections and the end tanks each include a plurality of discreet secondary compartments into which the corresponding ends of the tube core sections open. The end tanks also include primary compartments therein into and from which heat transfer liquid is received and discharged and communication structure is provided communicating each of the secondary compartments with the corresponding primary compartment for liquid coolant flow there between.

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 March 14, 1990 and granted October 12, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 14, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 14, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 14, 1990
GrantedOctober 12, 1993
Term endedMarch 14, 2010
Patent numberCA 2012177 C
Classification (IPC)F28F7/00 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedMarch 14, 1990Patent grantedOct 12, 1993Term endedMarch 14, 2010

Sources & verification

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