Granted Patent
Utility
US 4,880,218 · App. 07/128,493
Programmable bed for machine tools and the like
Inventor:
David Greene
Patented Case
View Patent ↗
Granted: Nov 14, 1989
Filed: Dec 3, 1987
Inventor
David Greene
Assignee (at issue)
Steelcase 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.