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Expired Canadian patentCanada

Penile erectile system

CA 1188053 A · Owner: Medical Engineering Corporation · Inventors: Trick, Robert E.

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

Abstract of the Disclosure A simple, reliable pressure control valve (21) for a medical device having a hydraulic system comprises an outer jacket (30) having an inlet (31) and an outlet (32) positioned between the inlet (31) and outlet (32) is a valve housing (33). A poppet (34) with an upwardly extending stem (35) is movably mounted in the housing (33). The poppet (34) has an annular seal (36) mounted on the poppet (34) circumferentially about the stem (35), and is supported by a calibrated spring (37) urging the poppet (34) towards the open top of the housing (33) so that the sealing edge (38) of the seal (36) is in sealing contact with the underside of a flange (39) which partially …

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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 June 4, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 4, 2002.
  • 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 31, 1982
GrantedJune 4, 1985
Term endedJune 4, 2002
Patent numberCA 1188053 A
Classification (IPC)A61F2/26

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedDec 31, 1982Patent grantedJune 4, 1985Term endedJune 4, 2002

Sources & verification

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