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. 04, 1980
Filed:
Feb. 03, 1975
Applicant:
Inventors:
Hans Camenisch, Chur, CH;
Jarmila Bachner, Egg, CH;
Assignee:
Elfotec A.G., Zumikon, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ; G03G / ; G03G / ;
U.S. Cl.
CPC ...
430 64 ; 430130 ; 430131 ;
Abstract
Long-life multilayer photoconductive members of the ZnO type are obtained when the successive layers are deposited using solvents, drying temperatures, etc. which do not affect the layers previously deposited. In such fashion, at least 4,000 cycles of use are possible.