The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 01, 1980
Filed:
Sep. 19, 1977
Paul Baran, Menlo Park, CA (US);
Termcom, Inc., Mountain View, CA (US);
Abstract
An electroresistive printing or writing system in which a long lasting balanced erosion rate electrode head is transported in relation to a front surface conducting writing receiver media held in a defined path between a resilient flat platen and a path referencing grounding member which contacts the conductive surface below the head. Writing is accomplished on either treated paper or a plain untreated receiving surface, such as paper, by use of a tri-layered film, having a heat transferable ink layer for marking the plain surface in response to vaporization or burning away of the front conductive surface at a head electrode caused by electric current flowing via that head electrode. The mechanical configuration of the system provides immediate unobstructed operator viewing of the just completed printing.