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Expired Canadian patentCanada

Pillow type pressure detector

CA 2082741 C · Owner: Takikawa, Kazuoki · Inventors: Takikawa, Kazuoki; Ohnishi, Michikazu; Ogoshi, Hiroshi

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 pillow type pressure detector having a base board on the front surface of which a load cell type load sensor is mounted; a holder cover which is so provided as to be spaced a predetermined distance from the base board; a flat-plate-shaped load transmitting board and a flat-plate-shaped retaining board positioned between the base board and the holder cover; a pillow type pressure reaction jig positioned between the load transmitting board and the retaining board; and a pillow holding member for clamping predetermined portions of the pressure reaction jig mounted over the base board and the holder cover. There are provided a mechanism for simultaneously swinging the load transmitting board …

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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 12, 1992 and granted July 14, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 12, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 12, 2014.
  • 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 12, 1992
GrantedJuly 14, 1998
Term endedNovember 12, 2012
Patent numberCA 2082741 C
Classification (IPC)A61M1/36 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedNov 12, 1992Patent grantedJuly 14, 1998Term endedNov 12, 2012

Sources & verification

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