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:
Jan. 25, 1977
Filed:
Dec. 08, 1975
Applicant:
Inventor:
Meredith David Shattuck, San Jose, CA (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
3501 / ; 252408 ;
Abstract
An apparatus and a process for displaying a visible image are disclosed. A solution in liquid of at least two types of polymeric materials contained between two electrodes, at least one of which is transparent, is subjected to imagewise electrical voltage. The polymers comprise cellulose nitrate, polyester, polyvinylcarbazole, and formaldehyde condensation polymers.