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Expired Canadian patentCanada

Mounting for door closer

CA 1066728 A · Owner: Nakanishi, Yoshitaka · Inventors: Nakanishi, Yoshitaka

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Title of Invention:, "Door Closer", Name and Address of Inventor: Yoshitaka NAKANISHI of 12-9, Yawata 5-Chome Ichikawa-shi, Chiba-ken, JAPAN, ABSTRACT OF THE DISCLOSURE A door closer comprising a plate-shaped mounting bracket which is fixed to a door and has a pair of elongate tongue-shaped male coupling portions at both edges thereof, and a main body of the door closer which has a pair of elongate groove-shaped female coupling portions at the outer side face thereof in which the female, coupling portions is slidably fitted to the male coupling portions for connecting the main body to the mounting bracket.

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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 November 20, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 20, 1996.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedNovember 20, 1979
Term endedNovember 20, 1996
Patent numberCA 1066728 A
Classification (IPC)E05F3/00

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedNov 20, 1979Term endedNov 20, 1996

Sources & verification

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