Granted Patent
Utility
US 4,264,014 · App. 05/958,301
Lock out means for pivotal axle suspension cylinders
Inventors:
Theodore B. Hogg, Lawrance F. Berg
Patented Case
View Patent ↗
Granted: Apr 28, 1981
Filed: Nov 6, 1978
Inventors
Theodore B. Hogg
Lawrance F. Berg
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.