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:
Dec. 11, 2012
Filed:
Jul. 14, 2009
Applicant:
Carl Yee, San Diego, CA (US);
Inventor:
Carl Yee, San Diego, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 29/38 (2006.01); B41J 2/17 (2006.01);
U.S. Cl.
CPC ...
Abstract
In accordance with one embodiment a self-erasing printing system comprises a substrate such as paper, a printer, a printer driver, and self-erasing ink. The self-erasing ink can comprise an acid-base indicator and a base whereby the ink is colored when printed but erases itself after a predetermined period of time. After the ink has self-erased the substrate may be reused.