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:
Sep. 30, 2003
Filed:
Oct. 31, 2001
Applicant:
Inventors:
Matthew D Giere, San Diego, CA (US);
Jeffery S Hess, Corvallis, OR (US);
Ulrich E Hess, Corvallis, OR (US);
Assignee:
Hewlett-Packard Development Company, LP., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/05 ; B41J 2/17 ;
U.S. Cl.
CPC ...
B41J 2/05 ; B41J 2/17 ;
Abstract
A printhead including a printhead substrate having at least one opening formed in a first surface to provide a fluid path through the substrate. The printhead further includes a thin film membrane formed on a second surface of the substrate. The thin film membrane includes a plurality of fluid ejection elements and has a floating section and a cantilevered section, which are detached and separated from one another by a gap.