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:
May. 31, 2016
Filed:
Jul. 24, 2012
Rio Rivas, Corvallis, OR (US);
Ed Friesen, Corvallis, OR (US);
Kellie Susanne Jensen, Corvallis, OR (US);
Rio Rivas, Corvallis, OR (US);
Ed Friesen, Corvallis, OR (US);
Kellie Susanne Jensen, Corvallis, OR (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
In an embodiment, a fluid ejection device includes a thin-film layer formed over a substrate, a chamber layer formed over the thin-film layer, the chamber layer defining a fluidic channel that leads to a firing chamber, a slot extending through the substrate and into the chamber layer through an ink feed hole in the thin-film layer, and a particle tolerant thin-film extension of the thin-film layer that protrudes into the slot from between the substrate and the chamber layer.