Granted Patent
Utility
US 4,243,385 · App. 06/015,038
End block
Inventor:
Ernest H. Jeffries, Jr.
Patented Case
View Patent ↗
Granted: Jan 6, 1981
Filed: Feb 26, 1979
Inventor
Ernest H. Jeffries, Jr.
Assignee (at issue)
RESCO PRODUCTS, 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.