Infrared sensitive silver halide photographic elements
CA 2038764 A1 · Owner: Delprato, Ivano · Inventors: Bucci, Marco; Spazzapan, Giorgio; Delprato, Ivano
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
45063CANlA, Infrared Sensitive Silver Halide Photographic Elements ABSTRACT OF THE DISCLOSURE, An infrared sensitive silver halide photographic element is disclosed comprising a support and at least one silver halide emulsion layer spectrally sensitized to the infrared portion of the electromagnetic spectrum. In particular, an infrared sensitive silver halide color photographic element, capable of providing full color images without exposure to corresponding visible radiation is, disclosed, said element comprising at least three silver halide emulsion layers on a substrate, each associated with different photographic color image forming materials such as color couplers capable of forming …
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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 March 21, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 21, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 21, 2013.
- 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.