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Expired Canadian patentCanada

Spacer member and method of forming the same

CA 1289918 C · Owner: Efp Corporation · Inventors: Elzey, Paul B.

CIPO record

Overview

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

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Abstract From the Canadian patent

Abstract of the Disclosure, A spacer member is adhered to a tape having adhesives at opposite faces thereof and a release layer is adhered to the first named tape to releasably connect multiple spacer members and expose adhesive at one face for adhering a spacer member to a fragile object upon removal of the release layer. The method includes forming spacer members of selected size from a large foam panel. One face of an adhesively coated tape is adhered to the panel and a release layer is adhered to the opposite face of the tape web, after which spacer members of selected size and shape are formed by cutting through the panel and the tape web without severing the release layer.

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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 October 1, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 1, 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.
FiledJanuary 7, 1987
GrantedOctober 1, 1991
Term endedOctober 1, 2008
Patent numberCA 1289918 C
Classification (IPC)B65D81/02 +1 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedJan 7, 1987Patent grantedOct 1, 1991Term endedOct 1, 2008

Sources & verification

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