Granted Patent
Utility
US 5,135,201 · App. 07/723,564
Lift cap for a jack
Inventors:
Darryl L. Engel, John Scoville
Patented Case
View Patent ↗
Granted: Aug 4, 1992
Filed: Jul 1, 1991
Inventors
Darryl L. Engel
John Scoville
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.