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Expired Canadian patentCanada

Roller assembly for a sliding frame closure

CA 1108475 A · Owner: Dallaire, Raymond · Inventors: Dallaire, Raymond

CIPO record

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

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Abstract From the Canadian patent

A roller assembly adapted to be snapped into and out of a channel of a sliding frame closure, which comprises an outer frame member having a pair of correspondingly positioned canted slots formed therein and means provided on the outer frame member to permit frictional and mechanical engagement of the assembly within the channel of a sliding frame closure; an inner frame member adapted to be mounted within the outer frame member and having a pair of roller wheels mounted in tandem upon a beam which is pivotally mounted in the inner frame member by means of a transverse pin the inner frame member being mounted for horizontal and vertical movement within the outer frame member by means of …

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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 September 8, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 8, 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.
FiledMarch 16, 1979
GrantedSeptember 8, 1981
Term endedSeptember 8, 1998
Patent numberCA 1108475 A
Classification (IPC)E05D15/06 +1 more

Timeline

Timeline From CIPO dates

1980198219841986198819901992199419961998Application filedMarch 16, 1979Patent grantedSep 8, 1981Term endedSep 8, 1998

Sources & verification

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