Granted Patent
Utility
US 4,795,050 · App. 07/002,214
Two-stage fuel cap
Inventors:
Dwight D. Smith, Robert S. Harris
Patented Case
View Patent ↗
Granted: Jan 3, 1989
Filed: Jan 12, 1987
Inventors
Dwight D. Smith
Robert S. Harris
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.