Granted Patent
Utility
US 4,243,366 · App. 06/076,518
Apparatus for forming starting tail for film rolls
Inventors:
Lloyd E. Lefevre, Mark A. Wegenka
Patented Case
View Patent ↗
Granted: Jan 6, 1981
Filed: Sep 17, 1979
Inventors
Lloyd E. Lefevre
Mark A. Wegenka
Assignee (at issue)
THE DOW CHEMICAL 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.