Granted Patent
Utility
US 5,875,264 · App. 08/722,390
Pixel hashing image recognition system
Inventor:
David L. Carlstrom
Patented Case
View Patent ↗
Granted: Feb 23, 1999
Filed: Sep 30, 1996
Inventor
David L. Carlstrom
Assignee (at issue)
Kaman Sciences 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.