Granted Patent
Utility
US 4,389,154 · App. 06/263,327
Time delay for a seat switch activated loader boom lock
Inventors:
Ray C. Minor, James W. Treichler, Carl E. Bohman
Patented Case
View Patent ↗
Granted: Jun 21, 1983
Filed: May 13, 1981
Inventors
Ray C. Minor
James W. Treichler
Carl E. Bohman
Assignee (at issue)
Sperry Corp.
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.