Granted Patent
Utility
US 4,402,139 · App. 06/201,716
Method and apparatus for detecting dome depth
Inventor:
Wesley Noyes
Patented Case
View Patent ↗
Granted: Sep 6, 1983
Filed: Oct 29, 1980
Inventor
Wesley Noyes
Assignee (at issue)
National Crane 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.