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Expired Canadian patentCanada

Right angle sensor

CA 2295649 C · Owner: Smith, William L. · Inventors: Smith, William L.

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

A sensor assembly (10) having a probe head (12) from which a probe shaft (24) having a shoulder (40) and threaded collar (26) extends distal from probe head (12). A seal (30) having an aperture (50) and a non-rotating collar (32) having an aperture (42) therethrough are positioned around probe shaft (24). Non-rotating collar (32) has an attachment hexhead (44) and a threaded end (46). When assembled threaded collar (26) projects through seal (30) and nonrotating collar (32) into a nose piece (36) having a tool accessible tightening aperture (38). An externally connecting exit cable (14) having connecting elements (20) extends from probe head (12).

Read the whole patent

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 July 24, 1998 and granted April 22, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 24, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 24, 2020.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 24, 1998
GrantedApril 22, 2003
Term endedJuly 24, 2018
Patent numberCA 2295649 C
Classification (IPC)G01D21/00 +1 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedJuly 24, 1998Patent grantedApril 22, 2003Term endedJuly 24, 2018

Sources & verification

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