Granted Patent
Utility
US 4,083,422 · App. 05/629,492
Bolt-on guidance system for lift truck
Inventors:
Thomas R. Blakeslee, James R. Francy
Patented Case
View Patent ↗
Granted: Apr 11, 1978
Filed: Nov 6, 1975
Inventors
Thomas R. Blakeslee
James R. Francy
Assignee (at issue)
Logisticon, 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.