Granted Patent
Utility
US 5,350,928 · App. 08/016,340
Apparatus and method for detecting perforations
Inventors:
Peter Hatchell, Danford C. Anderson, Ronald L. Lotto
Patented Case
View Patent ↗
Granted: Sep 27, 1994
Filed: Feb 11, 1993
Inventors
Peter Hatchell
Danford C. Anderson
Ronald L. Lotto
Assignee (at issue)
FMC CORPORATION
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.