Granted Patent
Utility
US 5,494,409 · App. 08/130,370
Gas pump vapor recovery system
Inventors:
Michael C. Webb, Thomas F. Wilson, Ken Kunaniec
Patented Case
View Patent ↗
Granted: Feb 27, 1996
Filed: Oct 1, 1993
Inventors
Michael C. Webb
Thomas F. Wilson
Ken Kunaniec
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.