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Canadian application, no grantCanada

Resistance milk flow sensor

CA 2136487 A1 · Owner: Larson, Larry G. · Inventors: Larson, Larry G.

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 non-intrusive milk flow sensor includes first and second cylindrical nipples of a conductive material. Each of the first and second cylindrical nipples has an inner diameter. A molded rubber body has a passage therethrough joining the first and second nipples. The body fixes the first cylindrical nipple inline with the second cylindrical nipple and is bonded with the nipples. The body has an inner diameter defined by the passage equal to the inner diameter of the first and second cylindrical nipples. The molded rubber body insulates the first cylindrical nipple from the second cylindrical nipple. A first electrical lead is connected to the first cylindrical nipple. A second electrical …

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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 November 23, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 23, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 23, 2016.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 23, 1994
GrantedNo grant recorded
Term endedNovember 23, 2014
Patent numberCA 2136487 A1
Classification (IPC)G01F1/56 +1 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedNov 23, 1994Term endedNov 23, 2014

Sources & verification

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