Apparatus for developing electrophotographic copying materials
CA 1107952 A · Owner: Hoechst Aktiengesellschaft · Inventors: Schwandt, Rudi; Topfer, Dieter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is an apparatus for developing electrophotographic copying materials which eliminates the damage to flexible copying materials encountered with conventional developing apparatus. This apparatus comprises a pair of feed rollers for applying toner dispersion to the copying material, a guide plate for supporting the copying material within the apparatus, a distributor element for the toner dispersion which acts as a counter-electrode means for, adjustably positioning the distributor element in parallel relation above the guide plate, and a pair of squeegee rollers for removing excess toner dispersion from the copying material.
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 September 1, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 1, 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.