Happy learning case
Description
Claims
The ornamental design for a happy learning case, as shown and described.
Referenced Cited
U.S. Patent Documents
1820275 | August 1931 | Kelley |
D93641 | October 1934 | Straayer |
D135336 | March 1943 | Grossberg |
D147385 | August 1947 | Stone |
D160360 | October 1950 | Bjoro |
D176418 | December 1955 | Huntington |
3270891 | September 1966 | Briggs |
D220149 | March 1971 | Leath |
3892450 | July 1975 | Kolster |
D395563 | June 30, 1998 | Hamilton, III |
7775379 | August 17, 2010 | Hodge |
9009997 | April 21, 2015 | Kemp |
Patent History
Patent number: D758104
Type: Grant
Filed: Feb 9, 2015
Date of Patent: Jun 7, 2016
Inventors: Jing Yun Hu (Beijing), Zhuo Ma (Beijing)
Primary Examiner: Mimosa De
Application Number: 29/517,042
Type: Grant
Filed: Feb 9, 2015
Date of Patent: Jun 7, 2016
Inventors: Jing Yun Hu (Beijing), Zhuo Ma (Beijing)
Primary Examiner: Mimosa De
Application Number: 29/517,042
Classifications
Current U.S. Class:
D6/662.1