Granted Patent
Utility
US 4,440,301 · App. 06/283,841
Self-stacking reagent slide
Inventor:
Franklin S. Intengan
Patented Case
View Patent ↗
Granted: Apr 3, 1984
Filed: Jul 16, 1981
Inventor
Franklin S. Intengan
Assignee (at issue)
American Hospital Supply Corp.
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.