Granted Patent
Utility
US 4,396,126 · App. 06/209,654
Telescoping crane boom
Inventors:
David Moravec, Lembit Vaerk
Patented Case
View Patent ↗
Granted: Aug 2, 1983
Filed: Nov 24, 1980
Inventors
David Moravec
Lembit Vaerk
Assignee (at issue)
Harnischfeger Corporation
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.