Granted Patent
Utility
US 4,787,528 · App. 06/720,979
Tip-proof car and filler neck
Inventors:
Robert S. Harris, Billy G. Crute
Patented Case
View Patent ↗
Granted: Nov 29, 1988
Filed: Apr 8, 1985
Inventors
Robert S. Harris
Billy G. Crute
Assignee (at issue)
Stant Corporation
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.