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Expired Canadian patentCanada

Showerhead apparatus

CA 1289596 C · Owner: Emhart Inc. · Inventors: Gonzalez, Teodoro J.

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

In an improved sowerhead a bulb portion having a channel for receipt of water therethrough, there is provided and a threaded collar for removeably coupling the bulb portion to a water supply source together with a housing comprising an outer housing portion and an inner housing portion in threadable relationship with one another and having a first O-ring disposed circumferentially about the bulb portion and proximate to the bulb portion channel. The inner housing portion has a front plate portion having a second Oring disposed peripherally thereabout and between the same and said outer housing portion such that the second O-ring exerts a friction against rotational movement between 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

  • Granted September 24, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 24, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 9, 1987
GrantedSeptember 24, 1991
Term endedSeptember 24, 2008
Patent numberCA 1289596 C
Classification (IPC)B05B1/18

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedDec 9, 1987Patent grantedSep 24, 1991Term endedSep 24, 2008

Sources & verification

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