Granted Patent
Utility
US 4,944,779 · App. 07/334,724
Vapor recovery system
Inventors:
Emil Szlaga, Robert S. Harris, Robert H. Thompson
Patented Case
View Patent ↗
Granted: Jul 31, 1990
Filed: Apr 7, 1989
Inventors
Emil Szlaga
Robert S. Harris
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.