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:
Mar. 21, 2017
Filed:
Sep. 30, 2013
Hewlett-packard Development Company, L.p., Houston, TX (US);
Yeang Chyn Wong, Singapore, SG;
Sittampalam Paranan, Singapore, SG;
Djuhartini Tandjo, Singapore, SG;
Boon Huey Yap, Singapore, SG;
Soo Leng Teo, Singapore, SG;
Ngee Hong Richard Lim, Singapore, SG;
Ping Siew Kwok, Singapore, SG;
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A printer cartridge is disclosed that is under negative pressure to retain liquid and allows controlled ingress of atmospheric air to release liquid from the printer cartridge. A labyrinth on a surface of the printer ink cartridge provides controlled ingress of atmospheric air having an entrance chamber to allow entry of atmospheric air, an exit chamber in communication with the liquid, and an elongate channel extending between the entrance chamber and the exit chamber. The elongate channel having a raised track formed on the surface and extending along each side of the elongate channel.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile