US D583,389 S
Exhaust filter for a vacuum pump
Théo Bilger, Helfrantzkirch (France)
Assigned to Ateliers Busch SA, Chevenez (Switzerland)
Filed on Sep. 19, 2007, as Appl. No. 29/291,919.
Claims priority of application No. DM/068 902 (WO), filed on Apr. 26, 2007.
Term of patent 14 Years
LOC (8) Cl. 15 - 02
U.S. Cl. D15—7
OG exemplary drawing
 
The ornamental design for an exhaust filter for a vacuum pump, as shown and described.