Granted Patent
Utility
US 4,761,057 · App. 07/016,602
Aperture member for photo plotting apparatus
Inventors:
Gregory M. Zak, Edward Cuomo
Patented Case
View Patent ↗
Granted: Aug 2, 1988
Filed: Feb 19, 1987
Inventors
Gregory M. Zak
Edward Cuomo
Assignee (at issue)
General Electric 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.