Granted Patent
Utility
US 4,835,403 · App. 06/947,826
Clocked optical sensing apparatus
Inventor:
Michael Wisniewski
Patented Case
View Patent ↗
Granted: May 30, 1989
Filed: Dec 30, 1986
Inventor
Michael Wisniewski
Assignee (at issue)
Bell and Howell, LLC
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.