Granted Patent
Utility
US 4,567,780 · App. 06/588,921
Hand-held pipette with disposable capillary
Inventors:
Jon E. Oppenlander, Bruce R. Koball, Carl L. Shackelford, Benn Karne
Patented Case
View Patent ↗
Granted: Feb 4, 1986
Filed: Mar 12, 1984
Inventors
Jon E. Oppenlander
Bruce R. Koball
Carl L. Shackelford
Benn Karne
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.