Granted Patent
Utility
US 4,708,534 · App. 06/830,686
Particle feed device with reserve supply
Inventor:
Ben J. Gallant
Patented Case
View Patent ↗
Granted: Nov 24, 1987
Filed: Feb 18, 1986
Inventor
Ben J. Gallant
Assignee (at issue)
Airsonics License Partnership
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.