Patent Yard Sign in
Expired Canadian patentCanada

Method of providing spacers on an insulating substrate

CA 1112371 A · Owner: N.V. Philips Gloeilampenfabrieken · Inventors: Hildering, Willem C.

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

PHN. 8790. 29-12-1977. ABSTRACT :, In a method of providing spacers on an insulating substrate, by which spacers the thickness of a connection between an electrical component and a substrate is adjusted, the spacers are rigidly provided on the substrate as a thick film pattern simultaneously with and with the same material as is used for at least one further thick-film coating required for an electrical circuit on the substrate. -9-

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 November 10, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 10, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 27, 1978
GrantedNovember 10, 1981
Term endedNovember 10, 1998
Patent numberCA 1112371 A
Classification (IPC)H05K1/14 +2 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedApril 27, 1978Patent grantedNov 10, 1981Term endedNov 10, 1998

Sources & verification

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