Granted Patent
Utility
US 4,836,835 · App. 07/236,798
Vacuum-actuated vapor recovery system
Inventors:
Robert S. Harris, Emil Szlaga, Robert H. Thompson
Patented Case
View Patent ↗
Granted: Jun 6, 1989
Filed: Aug 26, 1988
Inventors
Robert S. Harris
Emil Szlaga
Robert H. Thompson
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.