Granted Patent
Utility
US 4,230,341 · App. 05/945,270
Vehicle suspension system
Inventors:
Cullen P. Hart, Thomas C. Meisel, Jr.
Patented Case
View Patent ↗
Granted: Oct 28, 1980
Filed: Sep 25, 1978
Inventors
Cullen P. Hart
Thomas C. Meisel, Jr.
Assignee (at issue)
Caterpillar Tractor Co.
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.