Patent Yard Sign in
Expired Canadian patentCanada

Printing plate processor having recirculating water wash reclamation

CA 1293404 C · Owner: Mappin, Carlton D. · Inventors: Gillich, Thomas N.; Mappin, Carlton D.

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 wash water reclamation system for a printing plate processor having a external reservoir, wash water pumping and collecting means and means for continuously measuring wash water pH and conductivity. Conductivity and pH are automatically adjusted at pre-determined levels.

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

  • Granted December 24, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 24, 2008.
  • 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 3, 1988
GrantedDecember 24, 1991
Term endedDecember 24, 2008
Patent numberCA 1293404 C
Classification (IPC)G03D3/00 +2 more

Timeline

Timeline From CIPO dates

1989199119931995199719992001200320052007Application filedMarch 3, 1988Patent grantedDec 24, 1991Term endedDec 24, 2008

Sources & verification

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