Granted Patent
Utility
US 4,806,084 · App. 06/903,959
Hand-held vacuum pump
Inventor:
Theodore C. Neward
Patented Case
View Patent ↗
Granted: Feb 21, 1989
Filed: Sep 5, 1986
Inventor
Theodore C. Neward
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.