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. 14, 1992
Filed:
May. 15, 1989
Applicant:
Inventors:
Benzion Landa, Edmonton, Alberta, CA;
Avner Schneider, Nes Ziona, IL;
Assignee:
Spectrum Sciences B.V., Rotterdam, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41M / ;
U.S. Cl.
CPC ...
428141 ; 400241 ; 4002411 ; 4002412 ; 428156 ; 428167 ; 428195 ; 428207 ; 428246 ; 428290 ; 4283044 ; 4283213 ; 428327 ; 428334 ; 428335 ; 428341 ; 428401 ; 428480 ; 428914 ;
Abstract
A ribbon ink has a viscosity that increases with increasing rate of shear for rates of shear greater then a predetermined value. A printer ribbon for use with an impact printer comprises a substrate containing ink having a viscosity that increases with increasing rate of shear for rates of shear greater then a predetermined value.