Granted Patent
Utility
US 5,116,876 · App. 07/520,222
Photopolymerization processes with separation of initiator layer from resin layer
Inventors:
Robert S. Davidson, Susan Wilkinson
Patented Case
View Patent ↗
Granted: May 26, 1992
Filed: May 3, 1990
Inventors
Robert S. Davidson
Susan Wilkinson
Assignee (at issue)
NATIONAL RESEARCH DEVELOPMENT 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.