Granted Patent
Utility
US 4,526,455 · App. 06/529,211
Method of and system for controlling edge of distributed processing fluid
Inventor:
James Livingston
Patented Case
View Patent ↗
Granted: Jul 2, 1985
Filed: Sep 6, 1983
Inventor
James Livingston
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.