Granted Patent
Utility
US 4,762,292 · App. 07/009,147
Vacuum column web loop position sensing system
Inventor:
Alexander M. D'Anci
Patented Case
View Patent ↗
Granted: Aug 9, 1988
Filed: Jan 30, 1987
Inventor
Alexander M. D'Anci
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.