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Expired Canadian patentCanada

Stereo slide mount

CA 2233915 C · Owner: Inaba, Minoru · Inventors: Inaba, Minoru

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 stereo slide mount featuring an improved handling performance. Both the right and left ends of the stereo slide mount (11) are formed in an arcuate shape of a radius (r) from the center of the stereo slide mount (11) in the right-and-left direction. The lateral width (W1) of the bottom side becomes shorter than the whole width (W0). At the time of loading the stereo slide mount on the slide holder portion of the stereo slide viewer therefore, the stereo slide mount can be easily inserted despite the positioning between the stereo slide mount and the opening of the slide holder portion is not correct to some extent. Furthermore even when the stereo slide mount (11) is inserted in the slide …

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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 April 2, 1998 and granted October 8, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 2, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 2, 2020.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 2, 1998
GrantedOctober 8, 2002
Term endedApril 2, 2018
Patent numberCA 2233915 C
Classification (IPC)G03B21/64

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedApril 2, 1998Patent grantedOct 8, 2002Term endedApril 2, 2018

Sources & verification

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