Granted Patent
Utility
US 4,427,201 · App. 06/412,823
Double seal having vibration damping and lubricating means
Inventor:
James F. Belsanti
Patented Case
View Patent ↗
Granted: Jan 24, 1984
Filed: Aug 30, 1982
Inventor
James F. Belsanti
Assignee (at issue)
Allis-Chalmers Corporation
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.