Granted Patent
Utility
US 5,400,177 · App. 08/155,748
Technique for depth of field viewing of images with improved clarity and contrast
Inventors:
Tony Petitto, Stanislaw Loth
Patented Case
View Patent ↗
Granted: Mar 21, 1995
Filed: Nov 23, 1993
Inventors
Tony Petitto
Stanislaw Loth
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.