Patent Yard Sign in
Expired Canadian patentCanada

Abrasion-resistant laminate

CA 1245965 B · Owner: Nevamar Corporation · Inventors: Ungar, Israel S.; Scher, Herbert I.

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 method of producing an abrasion resistant decorative laminate from at least one backing layer and a thermosetting resin impregnated decorative facing sheet, said laminate having enhanced abrasion resistance without an overlay layer, the method comprising:, coating a decorative facing sheet with an ultra-thin wet layer of a mixture of (1) an abrasion resistant mineral of fine particle size in a quantity sufficient to provide an abrasion resistant layer without interfering with visibility and (2) a stabilizing binder material for the mineral having the properties of withstanding the subsequent laminating conditions and being compatible with the thermosetting resin the binder being present …

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 June 30, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 30, 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.
FiledDecember 28, 1977
GrantedJune 30, 1981
Term endedJune 30, 1998
Patent numberCA 1245965 B
Classification (IPC)D21H27/28 +2 more

Timeline

Timeline From CIPO dates

1978198119841987199019931996Application filedDec 28, 1977Patent grantedJune 30, 1981Term endedJune 30, 1998

Sources & verification

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