Granted Patent
Utility
US 4,759,376 · App. 07/038,947
Endocervical sampling brush and smear method
Inventor:
Nils Stormby
Patented Case
View Patent ↗
Granted: Jul 26, 1988
Filed: Apr 16, 1987
Inventor
Nils Stormby
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.