Granted Patent
Utility
US 4,861,002 · App. 07/237,845
Spring module with improved mounting foot structure
Inventor:
Upton R. Dabney
Patented Case
View Patent ↗
Granted: Aug 29, 1989
Filed: Aug 29, 1988
Inventor
Upton R. Dabney
Assignee (at issue)
Hoover Limited
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.