Granted Patent
Utility
US 6,637,423 · App. 10/048,729
Cutting device with changeable cutting depth
Inventors:
Alfred Rettenweber, Alexander Edward Turner, Peter Heubeck, Rochus Gold, Jürgen Röming, Georg Strigl
Patented Case
View Patent ↗
Granted: Oct 28, 2003
Filed: Jan 30, 2002
Inventors
Alfred Rettenweber
Alexander Edward Turner
Peter Heubeck
Rochus Gold
Jürgen Röming
Georg Strigl
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.