Granted Patent
Utility
US 4,829,381 · App. 07/182,987
System and method for electronic image enhancement by dynamic pixel transformation
Inventors:
Woo Jin Song, Donald S. Levinstone
Patented Case
View Patent ↗
Granted: May 9, 1989
Filed: Apr 18, 1988
Inventors
Woo Jin Song
Donald S. Levinstone
Assignee (at issue)
Polaroid 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.