Granted Patent
Utility
US 5,516,620 · App. 08/146,710
Method of on-press developing lithographic plates utilizing microencapsulated developers
Inventors:
Chieh-Min Cheng, Anthony C. Giudice, John M. Hardin, Rong-Chang Liang, Leonard C. Wan
Patented Case
View Patent ↗
Granted: May 14, 1996
Filed: Nov 1, 1993
Inventors
Chieh-Min Cheng
Anthony C. Giudice
John M. Hardin
Rong-Chang Liang
Leonard C. Wan
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.