Granted Patent
Utility
US 4,344,728 · App. 06/181,927
Rolling rack control means
Inventors:
James M. Echols, Richard W. Bouwhuis
Patented Case
View Patent ↗
Granted: Aug 17, 1982
Filed: Aug 27, 1980
Inventors
James M. Echols
Richard W. Bouwhuis
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.