Granted Patent
Utility
US 5,639,302 · App. 08/477,222
Apparatus and system for cleaning pressure applying members
Inventor:
John B. Morse
Patented Case
View Patent ↗
Granted: Jun 17, 1997
Filed: Jun 7, 1995
Inventor
John B. Morse
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.