Granted Patent
Utility
US 4,709,784 · App. 07/031,455
Apparatus for aiding in loading a mobile work platform onto an elevated surface
Inventor:
Lyle D. Grider
Patented Case
View Patent ↗
Granted: Dec 1, 1987
Filed: Mar 30, 1987
Inventor
Lyle D. Grider
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.