Method and apparatus for the manufacture of printing plates
CA 1064567 A · Owner: Hoechst Aktiengesellschaft · Inventors: Friese, Ferdinand
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a method and apparatus for the manufacture of printing masters by electrophotographic means. The unexposed printing masters are placed in the apparatus in a printing master holder and undergo electrostatic charging image exposure, development, drying and discharging from the apparatus mechanically. The apparatus provides a charging device a lighting, device for indirect illumination of an original an imaging, device for projecting the image of the original in a preselected scale onto the printing master, and transportation development, and drying means.
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 October 16, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 16, 1996.
- 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.