Method for optimizing a copying light profile
CA 2297397 A1 · Owner: Nussbaumer, Max · Inventors: Kraft, Walter; Nussbaumer, Max
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method for the optimization of a copying light profile during copying of photographic, originals in a photographic copier whereby the copier includes at least the following:, a light source for producing copying light for the copying process a number , of optical, light conducting means for guiding the copying light along a light path from the light, source through the photographic original to a copier material as well as for the shining, through of the photographic original and for the projection of the shone through original, onto the light sensitive copier material and a local transmission modulator , through which the copying light is guided by way of the light conductive means …
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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 January 28, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 28, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 28, 2022.
- 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.