Granted Patent
Utility
US 4,343,150 · App. 06/089,321
Sequential preconditioning circuit for hydrostatic transmission
Inventors:
Lucien B. Shuler, William J. Spivey, Jr.
Patented Case
View Patent ↗
Granted: Aug 10, 1982
Filed: Jun 13, 1979
Inventors
Lucien B. Shuler
William J. Spivey, 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.