Teaching aid
Description
1. Teaching aid
Claims
The ornamental design for teaching aid, as shown and described.
Referenced Cited
U.S. Patent Documents
| 2473222 | June 1949 | Ruben |
| 3155000 | November 1964 | Gnatt |
| D205401 | August 1966 | Schmoyer |
| 3921493 | November 1975 | Leonard |
| D242877 | December 28, 1976 | Bologna |
| 4031797 | June 28, 1977 | Schmoyer |
| 4781099 | November 1, 1988 | Koike |
| 4903571 | February 27, 1990 | Coles |
| 5029507 | July 9, 1991 | Bezeau, Jr. |
| 5370539 | December 6, 1994 | Dillard |
| 6239344 | May 29, 2001 | Prevost |
| 6348649 | February 19, 2002 | Chen |
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| 8558098 | October 15, 2013 | Mauldin |
Patent History
Patent number: D760837
Type: Grant
Filed: Jun 10, 2015
Date of Patent: Jul 5, 2016
Inventor: Pascal André Schnell (Bärschwil)
Primary Examiner: Elizabeth Albert
Application Number: 35/500,335
Type: Grant
Filed: Jun 10, 2015
Date of Patent: Jul 5, 2016
Inventor: Pascal André Schnell (Bärschwil)
Primary Examiner: Elizabeth Albert
Application Number: 35/500,335
Classifications
