Granted Patent
Utility
US 6,089,323 · App. 09/318,502
Tractor system
Inventors:
Kenneth R. Newman, Nelson A. Haver
Patented Case
View Patent ↗
Granted: Jul 18, 2000
Filed: May 25, 1999
Inventors
Kenneth R. Newman
Nelson A. Haver
Assignee (at issue)
CTES, L.C.
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.