Granted Patent
Utility
US 3,956,977 · App. 05/524,571
Fume hood with removable enclosure panels
Inventors:
Michael Turko, David F. Huempfner
Patented Case
View Patent ↗
Granted: May 18, 1976
Filed: Nov 18, 1974
Inventors
Michael Turko
David F. Huempfner
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.