Granted Patent
Utility
US 4,777,020 · App. 07/033,073
Sheetlike object such as microscope slide
Inventor:
David J. Brigati
Patented Case
View Patent ↗
Granted: Oct 11, 1988
Filed: Mar 31, 1987
Inventor
David J. Brigati
Assignee (at issue)
Fisher Scientific Company, L.L.C.
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.