Granted Patent
Utility
US 4,103,708 · App. 05/744,195
Ventilated poppet damper
Inventor:
Robert G. Huntington
Patented Case
View Patent ↗
Granted: Aug 1, 1978
Filed: Nov 22, 1976
Inventor
Robert G. Huntington
Assignee (at issue)
AMERICAN AIR FILTER COMPANY, INC.
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.