Granted Patent
Utility
US 4,902,601 · App. 07/300,699
Radiation sensitive polymeric diazonium salt and methods of making the polymeric diazonium salt
Inventors:
Rodney M. Potts, Michael J. Pratt, Keith Fletcher
Patented Case
View Patent ↗
Granted: Feb 20, 1990
Filed: Jan 19, 1989
Inventors
Rodney M. Potts
Michael J. Pratt
Keith Fletcher
Assignee (at issue)
Vickers PLC
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.