Electronic blackboard
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Description
The broken lines in the drawings illustrate environmental subject matter and form no part of the claimed design.
Claims
The ornamental design for an electronic blackboard, as shown and described.
Referenced Cited
U.S. Patent Documents
D339379 | September 14, 1993 | Persing |
D424538 | May 9, 2000 | Hayashi |
D594062 | June 9, 2009 | Loerakker |
D626599 | November 2, 2010 | Ogawa |
D635189 | March 29, 2011 | Bolt |
D649190 | November 22, 2011 | Goodall |
D657787 | April 17, 2012 | Fletcher |
D669553 | October 23, 2012 | Hughes |
D690295 | September 24, 2013 | Fletcher |
20060016951 | January 26, 2006 | Nash |
Patent History
Patent number: D762772
Type: Grant
Filed: Jun 12, 2015
Date of Patent: Aug 2, 2016
Assignee: RICOH COMPANY, LTD. (Tokyo)
Inventor: Naoto Tsuruoka (Ohta-ku)
Primary Examiner: Freda S Nunn
Application Number: 29/530,081
Type: Grant
Filed: Jun 12, 2015
Date of Patent: Aug 2, 2016
Assignee: RICOH COMPANY, LTD. (Tokyo)
Inventor: Naoto Tsuruoka (Ohta-ku)
Primary Examiner: Freda S Nunn
Application Number: 29/530,081
Classifications
Current U.S. Class:
D19/113;
Monitor (D14/371)