Digital protractor

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Description

FIG. 1 is a front elevational view of a digital protractor;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

Claims

The ornamental design for a digital protractor, as shown and described.

Referenced Cited
U.S. Patent Documents
D335634 May 18, 1993 Yau
7204030 April 17, 2007 Kattar
D562709 February 26, 2008 Sterpka et al.
20090064516 March 12, 2009 Diaz et al.
Patent History
Patent number: D610477
Type: Grant
Filed: Feb 13, 2009
Date of Patent: Feb 23, 2010
Inventors: Guangjin Li (Guilin), Changsong Jiang (Guilin)
Primary Examiner: Antoine D. Davis
Attorney: Matthias Scholl P.C.
Application Number: 29/332,406