Patent
   D878225
Priority
Jan 23 2017
Filed
Apr 14 2017
Issued
Mar 17 2020
Expiry
Mar 17 2035

TERM.DISCL.
Assg.orig
Entity
unknown
0
7
n/a
The ornamental design for a battery testing device, as shown and described.

FIG. 1 is a perspective view of a battery testing device showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines show the portions of the battery testing device that form no part of the claimed design.

Qian, Li, Wu, Yang, Wang, Yu-Quan, Guo, Xue-Wei, Ma, Li-Yong, Wang, Fu-Jun

Patent Priority Assignee Title
Patent Priority Assignee Title
5376887, Sep 28 1992 Battery tester with apertures for plural types and sizes of cells
6121753, Jan 23 1997 Apparatus and method for testing and indicating battery charge and functionality
20100054488,
228914,
D270142, May 13 1981 Cable Electric Products, Inc. Battery tester
D442503, Jun 02 2000 Auto Meter Products, Inc. Handheld battery tester
D474703, Mar 04 2002 Battery tester
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Mar 30 2017MA, LI-YONG Tsinghua UniversityASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0420220367 pdf
Mar 30 2017WANG, FU-JUN Tsinghua UniversityASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0420220367 pdf
Mar 30 2017WANG, YU-QUAN Tsinghua UniversityASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0420220367 pdf
Mar 30 2017QIAN, LITsinghua UniversityASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0420220367 pdf
Apr 14 2017Tsinghua University(assignment on the face of the patent)
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