Granted Patent
Utility
US 4,775,302 · App. 06/904,697
Hand-held vacuum and pressure pump
Inventor:
Theodore C. Neward
Patented Case
View Patent ↗
Granted: Oct 4, 1988
Filed: Sep 8, 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.