Granted Patent
Utility
US 6,164,923 · App. 09/230,146
Mobile thick matter pump
Inventors:
Martin Mayer, Willi Ebinger
Patented Case
View Patent ↗
Granted: Dec 26, 2000
Filed: Jan 19, 1999
Inventors
Martin Mayer
Willi Ebinger
Assignee (at issue)
PUTZMEISTER INC.
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.