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Expired Canadian patentCanada

Window operator and assembly method

CA 1301202 C · Owner: Nolte, Douglas A. · Inventors: Nolte, Douglas A.; Sandberg, Christopher T.; Rooney, Dennis J.

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

case 824, Abstract of the Disclosure, A window operator and assembly method therefor wherein a stacked pull arm and gear are rotatably mounted on a bushing carried by a mounting base and the gear and pull arm are assembled to the mounting base with a controlled clearance independent of the tolerance of these components by use of a hardened metal bushing. The hardened metal bushing is forced into the deformable metal of the mounting base whatever distance is necessary to locate an exposed end of the bushing a fixed distance beyond the uppermost of said gear and pull arm and provide a surface against which a washer may be mounted and which overlies the pull arm and gear to hold the components …

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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 May 19, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 19, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 28, 1988
GrantedMay 19, 1992
Term endedMay 19, 2009
Patent numberCA 1301202 C
Classification (IPC)B23P11/00 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedJune 28, 1988Patent grantedMay 19, 1992Term endedMay 19, 2009

Sources & verification

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