Orthodontic spring
Description
Claims
The ornamental design for an orthodontic spring, as shown and described.
Referenced Cited
U.S. Patent Documents
3237305 | March 1966 | Hegedus |
4424031 | January 3, 1984 | Dahan |
D296359 | June 21, 1988 | Dixon |
D354355 | January 10, 1995 | Hilgers |
D354569 | January 17, 1995 | Hilgers |
D354570 | January 17, 1995 | Hilgers |
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Patent History
Patent number: D600350
Type: Grant
Filed: Sep 15, 2008
Date of Patent: Sep 15, 2009
Inventor: Gurdev Dave Singh (Portland, OR)
Primary Examiner: Charles A Rademaker
Attorney: Peter A. Haas Esquire LLC
Application Number: 29/324,567
Type: Grant
Filed: Sep 15, 2008
Date of Patent: Sep 15, 2009
Inventor: Gurdev Dave Singh (Portland, OR)
Primary Examiner: Charles A Rademaker
Attorney: Peter A. Haas Esquire LLC
Application Number: 29/324,567
Classifications
Current U.S. Class:
Orthodontic Appliance (D24/180)