Granted Patent
Utility
US 4,828,128 · App. 07/191,128
Cap for motor oil container
Inventor:
George Tackles
Patented Case
View Patent ↗
Granted: May 9, 1989
Filed: May 6, 1988
Inventor
George Tackles
Assignee (at issue)
Cap Snap Co.
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.