Marking method and apparatus
CA 1050097 A · Owner: Xerox Corporation · Inventors: Hwa, Stephen C.P.; Dye, Malcolm S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A method and apparatus are provided for providing droplets that are suitable to mark a recording surface with a high degree of resolution and which are quickly responsive to electrical input. A shaft electrode is positioned with respect to a supply of marking liquid such that its propellant end is just above the surface of the marking liquid. A field is established between the shaft electrode and one external electrode causing droplets to be propelled from the marking liquid supply covering the shaft electrode onto record receiving 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 March 6, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 6, 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.