Granted Patent
Utility
US 4,236,255 · App. 05/969,798
Rack entry vehicle communication system
Inventors:
Robert C. Burgener, Philip T. Martin, John J. Lord
Patented Case
View Patent ↗
Granted: Nov 25, 1980
Filed: Dec 15, 1978
Inventors
Robert C. Burgener
Philip T. Martin
John J. Lord
Assignee (at issue)
The Interlake Companies, 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.