Granted Patent
Utility
US 4,340,336 · App. 06/130,867
Aspirator
Inventor:
Thomas R. Clary
Patented Case
View Patent ↗
Granted: Jul 20, 1982
Filed: Mar 17, 1980
Inventor
Thomas R. Clary
Assignee (at issue)
Hudson Oxygen Therapy Sales Company
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.