Removable screening system for a transparency reproduction machine
CA 1106437 A · Owner: Xerox Corporation · Inventors: Cherian, Abraham
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electrophotographic printing machine in which a transparency or opaque original document is reproduced. A movable screen is located in a first position spaced from the path of the transparency light image in order to reproduce the original document. When the transparency is being reproduced the screen is moved to a second position in the path of the transparency light image for modulating the light image thereof. The foregoing abstract is neither intended to define the invention disclosed in the specification nor is it intended, to be limiting to be limiting as to the scope of the invention in any way.
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
- Granted August 4, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 4, 1998.
- 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.