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:
Oct. 15, 2002
Filed:
Oct. 31, 2001
Applicant:
Inventors:
Laurie A. Coventry, Shedd, OR (US);
Allen H. Smith, Corvallis, OR (US);
Dustin W. Blair, San Diego, CA (US);
Assignee:
Hewlett-Packard Company, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 2/05 ; B41J 2/175 ; B41J 2/17 ;
U.S. Cl.
CPC ...
B41J 2/05 ; B41J 2/175 ; B41J 2/17 ;
Abstract
A fluid drop ejecting apparatus including a thin film stack including a plurality of heater resistors formed on a substrate having a feed edge, a patterned fluid barrier layer disposed on the thin film stack, respective fluid chambers formed in the barrier layer over respective heater resistors, fluid feed features formed in the barrier layer between the fluid feed edge and the ink chambers, and a thin film metal structure in a metal layer of the thin film stack and located between the ink feed edge and the fluid chambers.