Granted Patent
Utility
US 4,649,472 · App. 06/589,298
Multi-phase subroutine control circuitry
Inventor:
Dongsung KIM
Patented Case
View Patent ↗
Granted: Mar 10, 1987
Filed: Mar 14, 1984
Inventor
Dongsung KIM
Assignee (at issue)
Burroughs, Inc.
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.