Portable ink fountain
CA 1161692 A · Owner: Dahlgren Manufacturing Company · Inventors: Dahlgren, Harold P.; Gardiner, John W.; Sullivan, William A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An object of the invention is to provide a method of metering to a printing plate. An applicator roller which, receives ink from a pick-up roller is positioned in pressure, indented relation with a metering roller. The surface speed of metering roller is varied to meter the ink to roller apparatus which supplies the ink to printing plate.
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 February 7, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 7, 2001.
- 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.