Granted Patent
Utility
US 4,935,871 · App. 07/314,511
Electronic road system generation method for an automatic guided vehicle
Inventor:
Paul D. Grohsmeyer
Patented Case
View Patent ↗
Granted: Jun 19, 1990
Filed: Feb 23, 1989
Inventor
Paul D. Grohsmeyer
Assignee (at issue)
Caterpillar 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.