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Expired Canadian patentCanada

Angular gear for venetian blinds

CA 1305403 C · Owner: Turnils Ab · Inventors: Lindstrom, Vincent

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 an angular gear for use in venetian blinds, for angular adjustment of the venetian blind laths, from a place beside the venetian blind. The angular gear consists of a gear housing a drive shaft, provided with a helical gear and a pinion. The drive shaft, is provided with an operating means. The pinion which meshes, with the helical gear, is engaged with a rod suspending the venetian blind laths, by supporting ladder bands attached to the shaft. The drive shaft is provided with at least one bearing portion of circular cross section which bearing, portion cooperates with a complementary bearing portion in the gear housing. The bearing portion comprises a neck …

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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 July 21, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 21, 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.
FiledFebruary 24, 1989
GrantedJuly 21, 1992
Term endedJuly 21, 2009
Patent numberCA 1305403 C
Classification (IPC)E06B9/32 +2 more

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedFeb 24, 1989Patent grantedJuly 21, 1992Term endedJuly 21, 2009

Sources & verification

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