Granted Patent
Utility
US 5,035,406 · App. 07/321,181
Variable rate secondary spring for a primary leaf suspension spring
Inventors:
Roger Sellers, George R. Schmidt
Patented Case
View Patent ↗
Granted: Jul 30, 1991
Filed: Mar 9, 1989
Inventors
Roger Sellers
George R. Schmidt
Assignee (at issue)
Moog Automotive, 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.