Granted Patent
Utility
US 4,699,362 · App. 07/006,889
Spring element
Inventor:
Edwin G. Krakauer
Patented Case
View Patent ↗
Granted: Oct 13, 1987
Filed: Jan 27, 1987
Inventor
Edwin G. Krakauer
Assignee (at issue)
LEGGETT & PLATT, 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.