Granted Patent
Utility
US 5,168,815 · App. 07/738,844
Railroad car moving vehicle
Inventors:
Glen S. Comer, Jr., Robert E. Crockett
Patented Case
View Patent ↗
Granted: Dec 8, 1992
Filed: Jul 31, 1991
Inventors
Glen S. Comer, Jr.
Robert E. Crockett
Assignee (at issue)
Stewart & Stevenson Services, 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.