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Expired Canadian patentCanada

Holder

CA 2019895 C · Owner: Milne, Alexander P. · Inventors: Milne, Alexander P.

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 writing implement holder to attach to a surface. The holder includes a base to be attached to the surface and having an underside and an opening. There is a recess in the underside surrounding the opening. A cylinder receives the writing implement and is itself located in the opening in the base. A flange at one end of the cylinder is received in the recess in the underside of the base. The upper surface of the cylinder extends inwardly downwardly and is of such a depth that it prevents the writing implement being used to lever the base from the surface. One plug is received in the writing implement and another plug is received in the base and a cable extends between the two plugs. Each …

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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 June 26, 1990 and granted December 14, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 26, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 26, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 26, 1990
GrantedDecember 14, 1993
Term endedJune 26, 2010
Patent numberCA 2019895 C
Classification (IPC)B43K23/00

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedJune 26, 1990Patent grantedDec 14, 1993Term endedJune 26, 2010

Sources & verification

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