Granted Patent
Utility
US 5,493,334 · App. 08/420,325
Automatic digital black shading for cameras
Inventors:
Anthony Eugene Zortea, Peter Westerink
Patented Case
View Patent ↗
Granted: Feb 20, 1996
Filed: Apr 11, 1995
Inventors
Anthony Eugene Zortea
Peter Westerink
Assignee (at issue)
Panasonic Technologies, 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.