Granted Patent
Utility
US 4,959,541 · App. 07/389,033
Method for determining aperture shape
Inventor:
David W. Boyd
Patented Case
View Patent ↗
Granted: Sep 25, 1990
Filed: Aug 3, 1989
Inventor
David W. Boyd
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.