Granted Patent
Utility
US 4,694,331 · App. 06/782,576
Vertical transition processor for a comb filter
Inventors:
Kirk A. Law, Leopold A. Harwood
Patented Case
View Patent ↗
Granted: Sep 15, 1987
Filed: Oct 1, 1985
Inventors
Kirk A. Law
Leopold A. Harwood
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.