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Expired Canadian patentCanada

Rail house car door crank mount

CA 1087457 A · Owner: Youngstown Steel Door Company (The) · Inventors: Mundinger, William D.; Jenkins, Oliver J.

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

Abstract of the Disclosure A rail house car with at least one opening along each of its sides. The car includes a door for closing each of the openings by movement of the doors longitudinally along the car sides and laterally into and out of the openings. Bottom and top rotating crank members moveably support and retain the doors on longitudinal tracks below the doors and within longitudinal retainer means above the doors. At least some of the crank members are selectively manually driven by rotational means for selective lateral movement of the doors. The top crank members adjacent the upper portion of the doors each include a bore. A forged pin is telescopingly received in each of a …

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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 14, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 14, 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.
FiledJanuary 4, 1978
GrantedOctober 14, 1980
Term endedOctober 14, 1997
Patent numberCA 1087457 A
Classification (IPC)B61D19/00 +2 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedJan 4, 1978Patent grantedOct 14, 1980Term endedOct 14, 1997

Sources & verification

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