Granted Patent
Utility
US 5,447,486 · App. 08/151,439
Maintaining perforation phasing
Inventors:
Danford C. Anderson, Peter Hatchell, Emiel Lambrecht, Eric DeSmedt
Patented Case
View Patent ↗
Granted: Sep 5, 1995
Filed: Nov 12, 1993
Inventors
Danford C. Anderson
Peter Hatchell
Emiel Lambrecht
Eric DeSmedt
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.