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Expired Canadian patentCanada

Electroplating tape and method for using

CA 1267630 C · Owner: Fairbanks, Norman Paul · Inventors: Fairbanks, Norman Paul

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

A method for applying preselected abrasive particles to a cleaned first article surface adjacent a second article surface selected to be substantially free of such abrasive particles includes disposing on the first article surface a first electrically non-conductive tape segment including pores large enough to allow passage of electrodeposition current and electrolyte solution but smaller than the size of abrasive particles to be retained on the first tape segment. The first segment has a porous adhesive layer of relatively low tack level, the adhesive carrying the abrasive particles through a first, relatively weak bond. A second electrically non-conductive tape segment substantially …

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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 April 10, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 10, 2007.
  • 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 11, 1985
GrantedApril 10, 1990
Term endedApril 10, 2007
Patent numberCA 1267630 C
Classification (IPC)C25D5/54 +2 more

Timeline

Timeline From CIPO dates

19861989199219951998200120042007Application filedJuly 11, 1985Patent grantedApril 10, 1990Term endedApril 10, 2007

Sources & verification

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