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:
Nov. 29, 2005
Filed:
Aug. 01, 2003
Applicant:
Timothy S. Hostetler, Corvallis, OR (US);
Inventor:
Timothy S. Hostetler, Corvallis, OR (US);
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23P017/00 ; G11B005/127 ;
U.S. Cl.
CPC ...
Abstract
In one example embodiment, a method of fabricating a fluid ejection device is provided. The method can including fabricating a thinflim structure on a device substrate and forming a peripheral break trench structure in a first surface of the substrate circumscribing a region in which a feed slot is to be formed through the substrate. Subsequently the substrate can be abrasively machined from a second surface of the substrate to the break trench structure to form the feed slot.