Granted Patent
Utility
US 4,226,325 · App. 06/020,674
Conveyor lubricating and washing apparatus
Inventor:
Edward B. Vandas
Patented Case
View Patent ↗
Granted: Oct 7, 1980
Filed: Mar 15, 1979
Inventor
Edward B. Vandas
Assignee (at issue)
MCGRAW-EDISON COMPANY
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.