Granted Patent
Utility
US 6,135,048 · App. 09/428,040
Foldable pontoon
Inventor:
Lothar Emrich
Patented Case
View Patent ↗
Granted: Oct 24, 2000
Filed: Oct 27, 1999
Inventor
Lothar Emrich
Assignee (at issue)
EWK Eisenwerke Kaiserlauten GmbH
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.