Granted Patent
Utility
US 4,893,407 · App. 07/358,086
Integral dust cover and pump drive
Inventor:
Ronald D. Lane
Patented Case
View Patent ↗
Granted: Jan 16, 1990
Filed: May 30, 1989
Inventor
Ronald D. Lane
Assignee (at issue)
Blount, Inc.
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.