Granted Patent
Utility
US 5,427,251 · App. 08/162,394
Tipping grid for floating dredges
Inventors:
Peter Landmann, Werner Knecht
Patented Case
View Patent ↗
Granted: Jun 27, 1995
Filed: Dec 6, 1993
Inventors
Peter Landmann
Werner Knecht
Assignee (at issue)
PS Foerder- und Lagertechnik
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.