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:
Feb. 28, 2023
Filed:
Dec. 04, 2018
Applicant:
Hewlett-packard Development Company, L.p., Spring, TX (US);
Inventors:
Wesley R. Schalk, Vancouver, WA (US);
Kenneth Williams, Vancouver, WA (US);
Christopher John Arnold, Vancouver, WA (US);
Assignee:
Hewlett-Packard Development Company, L.P., Spring, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/18 (2006.01); B41J 2/175 (2006.01);
U.S. Cl.
CPC ...
B41J 2/18 (2013.01); B41J 2/17506 (2013.01); B41J 2/17596 (2013.01);
Abstract
A method of recirculating printing fluid that includes with a first pump upstream of an internal reservoir, pumping printing fluid into the reservoir and with a second pump downstream of the internal reservoir and upstream of a pen assembly, pumping printing fluid from the reservoir.