Granted Patent
Utility
US 5,686,953 · App. 08/343,343
Imaging system and method using linear perceived optical density interface
Inventors:
Todd G. Langmade, Mark J. Giebler
Patented Case
View Patent ↗
Granted: Nov 11, 1997
Filed: Nov 22, 1994
Inventors
Todd G. Langmade
Mark J. Giebler
Assignee (at issue)
Minnesota Mining and Manufacturing Company
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.