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Expired Canadian patentCanada

Device for fixing a water meter onto a base and method relating thereto

CA 1322016 C · Owner: Persohn S.A. · Inventors: Loosdregt, Henri; Persohn, Philippe; Persohn, Paul

CIPO record

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Abstract From the Canadian patent

The contact surfaces of the water meter (1) and the base (2) are each bordered by an annular shoulder (6 7). An assembly ring (8) is provided so as to keep the two annular shoulders (6, 7) in contact this ring (8), comprising slits (9) separating a series of elastic fingers (10). The ring (8) comprises moreover on its inner face an annular groove (11) complementing the two annular shoulders (6, 7). A rigid collar (15) force-fitted onto the elastic shoulders (10) and bearing against the lugs (12) keeps the annular groove (11) against the annular shoulders (6, 7) which are in contact. (see Figure 1)

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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 September 7, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 7, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 12, 1989
GrantedSeptember 7, 1993
Term endedSeptember 7, 2010
Patent numberCA 1322016 C
Classification (IPC)F16L35/00 +2 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedSep 12, 1989Patent grantedSep 7, 1993Term endedSep 7, 2010

Sources & verification

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