Granted Patent
Utility
US 5,137,161 · App. 07/584,550
Boom support assembly
Inventor:
Vance D. Dutton
Patented Case
View Patent ↗
Granted: Aug 11, 1992
Filed: Sep 18, 1990
Inventor
Vance D. Dutton
Assignee (at issue)
Dresser Industries, 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.