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. 23, 2021
Filed:
Apr. 24, 2017
Applicant:
Hewlett-packard Development Company, L.p., Spring, TX (US);
Inventors:
Bryan Murphy, Leixlip, IE;
SeeMun Phoong, Leixlip, IE;
John Enright, Leixlip, IE;
James Mannion, Leixlip, IE;
Assignee:
Hewlett-Packard Development Company, L.P., Spring, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/175 (2006.01);
U.S. Cl.
CPC ...
B41J 2/1754 (2013.01); B41J 2/17506 (2013.01); B41J 2/17513 (2013.01);
Abstract
In an example, there is provided a closure device. The closure device comprises an air-permeable and ink-impermeable membrane to prevent ink egress from a refillable ink tank of a printer. The membrane has an ink tank side and an air side. The closure device also comprises a tortuous air flow path connecting the air side of the membrane to an exterior of the ink tank.