Granted Patent
Utility
US 4,268,550 · App. 06/054,386
Metered finish
Inventor:
Louis B. Williams, Jr.
Patented Case
View Patent ↗
Granted: May 19, 1981
Filed: Jul 2, 1979
Inventor
Louis B. Williams, Jr.
Assignee (at issue)
Monsanto Company
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.