Liquid developer systems for imaging on transparent and opaque substrates
CA 2090971 C · Owner: Landa, Benzion · Inventors: Landa, Benzion
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for providing an image on either opaque or transparent substrates (42) to have substantially equal apparent color saturation when viewed and including the steps of: developing a latent electrostatic image on an image bearing surface (16) using a colored liquid developer in a developer system operating at given voltages; and subsequently transferring the image to the substrate (42) wherein said liquid developer developer system, and voltages are the same for printing on both opaque and transparent substrates. The method utilizes a control apparatus opera-, tive when the substrate (42) sought to be printed is transparent for causing each toner image to be developed on an image …
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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 September 19, 1990 and granted August 13, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 19, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 19, 2012.
- 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.