Granted Patent
Utility
US 6,808,026 · App. 10/466,019
Pneumatic percussive tool with a short working drive piston
Inventors:
Rudolf Berger, Wolfgang Schmid, Mirko Lysek
Patented Case
View Patent ↗
Granted: Oct 26, 2004
Filed: Jul 8, 2003
Inventors
Rudolf Berger
Wolfgang Schmid
Mirko Lysek
Assignee (at issue)
Wacker Construction Equipment AG
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.