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Expired Canadian patentCanada

Anemometer

CA 2044293 C · Owner: Societa Ingegneria Telecomunicazioni Elettronica Prodotti S.P.A. · Inventors: Trombella, Remo

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 inventions relates to an anemometer in which a, preferably cylindrical flow-capturing surface (1) is fastened to the control lever (10) of an electrical transducer (2) which is fixed to the top of a support (16) mounted in a box (15). The flow-capturing surface (1) is fastened to a cylindrical hollow body (18) arranged in an annular chamber (19) which surrounds the electrical transducer (2) and the support (16) thereof. The upper part of the cylindrical body (18) is passed through an opening (315) formed in the upper wall (115) of the box and sealingly closed by a resilient annular collar (14) fixed to the cylindrical hollow body (18) and to the upper wall (115) of the box (15). The …

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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

  • Filed June 11, 1991 and granted May 31, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 11, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 11, 2013.
  • 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 11, 1991
GrantedMay 31, 1994
Term endedJune 11, 2011
Patent numberCA 2044293 C
Classification (IPC)G01L7/06 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedJune 11, 1991Patent grantedMay 31, 1994Term endedJune 11, 2011

Sources & verification

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