Negative film masking system in photographic processing and printing machine
CA 2124642 C · Owner: Ikehara, Hiroaki · Inventors: Ikehara, Hiroaki; Oka, Noriyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A negative film masking system for use in a photographic processing and printing machine comprises a negative film masking assembly consisiting mainly of a masking and a negative film hold-down and a masking mount to which the negative film masking assembly is loaded where photographic prints are , produced from a negative film loaded in the negative film masking assembly and having standard size frames and panoramic size frames in random combination the, panoramic size frame designated by masking both widthwise edges of the film in shooting to make two unexposed regions in a standard frame. The negative film masking system further comprises a four-sided film gate aperture in the masking …
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 May 30, 1994 and granted April 11, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 30, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 30, 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.