Granted Patent
Utility
US 4,607,187 · App. 06/643,314
Structure for and method of aligning beam-defining apertures by means of alignment apertures
Inventor:
Sigmund T. Villanyi
Patented Case
View Patent ↗
Granted: Aug 19, 1986
Filed: Aug 22, 1984
Inventor
Sigmund T. Villanyi
Assignee (at issue)
RCA 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.