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Expired Canadian patentCanada

Bolster gib spacing on roller bearing truck

CA 1213472 A · Owner: Amsted Industries Incorporated · Inventors: Henkel, James A.

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

The present invention relates to a railway truck including a side frame and a bolster. The bolster has two ends, each end having two sets of inner and outer bolster gibs. Each set of inner and outer bolster gibs form a pocket on the bolster to contact a side frame column. The preferred clearance from the side frame column to the inner bolster gib is equal to or greater than the distance between the side frame column to the outer bolster gib. -i-

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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 November 4, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 4, 2003.
  • 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 11, 1983
GrantedNovember 4, 1986
Term endedNovember 4, 2003
Patent numberCA 1213472 A
Classification (IPC)B61F5/04

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedApril 11, 1983Patent grantedNov 4, 1986Term endedNov 4, 2003

Sources & verification

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