Granted Patent
Utility
US 4,748,330 · App. 06/944,525
Method and apparatus for measuring periodic matrix spaces
Inventor:
Frank S. Krufka
Patented Case
View Patent ↗
Granted: May 31, 1988
Filed: Dec 22, 1986
Inventor
Frank S. Krufka
Assignee (at issue)
RCA Licensing 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.