Patent Yard Sign in
Expired Canadian patentCanada

Corrugated steel wall lining for boxcar

CA 1081541 A · Owner: Iec-Holden Ltd. · Inventors: Winsor, Robert B.

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

Abstract of the Disclosure, A metal sheet for lining side walls of a freight railway car having a plurality of spaced-apart vertical wall supports. The metal sheet comprises a plurality of spaced-apart elongated channels formed across a flat surface of the sheet. Each of the channels has a bottom wall spaced from the flat surface of the sheet. A plurality of spacedapart apertures are provided in the bottom wall of at least some of the channels to permit an attachment element to connect the sheet to an associated one of the vertical wall supports. The channels are configured to receive an anchor bar having an attachment part and securable ends. The securable ends are weldable in the channels …

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 July 15, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 15, 1997.
  • 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 7, 1977
GrantedJuly 15, 1980
Term endedJuly 15, 1997
Patent numberCA 1081541 A
Classification (IPC)B61D17/18

Timeline

Timeline From CIPO dates

1978198019821984198619881990199219941996Application filedDec 7, 1977Patent grantedJuly 15, 1980Term endedJuly 15, 1997

Sources & verification

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