Granted Patent
Utility
US 3,997,657 · App. 05/637,270
Dry slide reagent employed in immunofluorescent test for detection of human antinuclear factor
Inventors:
Beatrice Frances Dziobkowski, Gerald E. Stiles
Patented Case
View Patent ↗
Granted: Dec 14, 1976
Filed: Dec 3, 1975
Inventors
Beatrice Frances Dziobkowski
Gerald E. Stiles
Assignee (at issue)
American Cyanamid 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.