Granted Patent
Utility
US 4,474,869 · App. 06/417,979
Polyvinylpyridine radiation resists
Inventors:
Robert G. Brault, Leroy J. Miller
Patented Case
View Patent ↗
Granted: Oct 2, 1984
Filed: Sep 14, 1982
Inventors
Robert G. Brault
Leroy J. Miller
Assignee (at issue)
Hughes Aircraft 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.