Aid for teaching drawings
Description
Claims
I claim the ornamental design for an aid for teaching drawings, as shown and described.
Referenced Cited
U.S. Patent Documents
5492472 | February 20, 1996 | Starks |
2319162 | May 1943 | Short |
2335941 | December 1943 | Howard |
D310686 | September 18, 1990 | Tacquard et al. |
5100325 | March 31, 1992 | Cutler |
5720615 | February 24, 1998 | Redey |
D412539 | August 3, 1999 | Corliss |
D412890 | August 17, 1999 | Nesenoff |
D566767 | April 15, 2008 | Urdarevik |
D590019 | April 7, 2009 | Urdarevik |
20060078855 | April 13, 2006 | Thomas et al. |
Patent History
Patent number: D736314
Type: Grant
Filed: Dec 21, 2012
Date of Patent: Aug 11, 2015
Inventor: Slobodan Urdarevik (Portage, MI)
Primary Examiner: T. Chase Nelson
Assistant Examiner: Mark Cavanna
Application Number: 29/442,164
Type: Grant
Filed: Dec 21, 2012
Date of Patent: Aug 11, 2015
Inventor: Slobodan Urdarevik (Portage, MI)
Primary Examiner: T. Chase Nelson
Assistant Examiner: Mark Cavanna
Application Number: 29/442,164
Classifications
Current U.S. Class:
Demonstrator Or Exhibitor (10) (D19/62)