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:
Mar. 23, 1976
Filed:
Jul. 16, 1973
Ezekiel J Jacob, Brooklyn, NY (US);
Other;
Abstract
Raised Xerographic printing is produced by the use of thermally intumesced electroscopic powders for the development of the electrophotographic images. Intumescent electroscopic powders are blended with the powdered pigmented 'ink' or 'Toner' in the ink reservoir of a Xerographic copying machine. The image is formed and transferred to a paper carrier in the wellknown process of Carlson, U.S.P. at No. 2,297,691. The heat used in thermoadhesively attaching the 'Toner' to the paper carrier also causes great intumescence of the intumescent powder, resulting in a raised image. The image is similar in appearance and texture to 'engraving' or raised thermographic printing. It can be read by the sightless by tactile recognition. The intumescent powder used is made of vinylidene-chloride-acrylonitrile-isobutane as described by the inventor in his Disclosure Document No. 001,078 filed in the U.S. Patent Office on Dec. 22, 1969. Original Application was submitted in raised printing exemplifying this invention. It was produced by the normal copying operation of a Xerox 813 Copier without any mechanical changes using the intumescent 'Toner' of the present invention.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile