Granted Patent
Utility
US 4,485,396 · App. 06/418,903
Automatic chroma filter
Inventor:
Edmund Sandberg
Patented Case
View Patent ↗
Granted: Nov 27, 1984
Filed: Sep 16, 1982
Inventor
Edmund Sandberg
Assignee (at issue)
Ampex 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.