Granted Patent
Utility
US 4,896,340 · App. 06/793,926
Partial direct injection for signal processing system
Inventor:
David Caro
Patented Case
View Patent ↗
Granted: Jan 23, 1990
Filed: Nov 1, 1985
Inventor
David Caro
Assignee (at issue)
Hughes Aircraft 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.