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:
Jun. 17, 2025
Filed:
Mar. 30, 2020
Applicant:
Hewlett-packard Development Company, L.p., Spring, TX (US);
Inventors:
Kathryn H. Cyr, Corvallis, OR (US);
Debora J. Thomas, Corvallis, OR (US);
Assignee:
Hewlett-Packard Development Company, L.P., Spring, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01L 3/00 (2006.01); B41J 2/135 (2006.01);
U.S. Cl.
CPC ...
B01L 3/502761 (2013.01); B01L 2200/0652 (2013.01); B01L 2200/0663 (2013.01); B01L 2300/0645 (2013.01); B01L 2300/0877 (2013.01); B01L 2400/0406 (2013.01);
Abstract
In one example in accordance with the present disclosure, a fluid ejection die is described. The fluid ejection die includes a fluid feed slot to deliver fluid from a reservoir to an array of ejection chambers fluid connected to the fluid feed slot. Each ejection chamber includes at least one fluid actuator and an opening through which fluid is to be ejected. The fluid ejection die also includes a number of antechambers. An antechamber includes sidewalls that curve inward.