Photographic printing apparatus
CA 2113602 C · Owner: Noritsu Koki Co. Ltd. · Inventors: Kojima, Masayuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A photographic printing apparatus having a single light source and a reflecting mirror. The mirror is provided between the light source and the light-modulating device having light-modulating filters a mirror tunnel and, diffusers and has a light-passing portion. Most part of the light from the light source is reflected by the mirror and used for exposing negative films after passing it through the light-modulating device. The remainder of the light from the light source passes through the light-passing portion and is used for scanning.
Read the whole patent
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 January 17, 1994 and granted November 11, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 17, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 17, 2016.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.