Granted Patent
Utility
US 4,359,945 · App. 06/215,029
Gravity trolley conveyor with speed control
Inventors:
John H. Brems, John L. Vaphiadis
Patented Case
View Patent ↗
Granted: Nov 23, 1982
Filed: Dec 10, 1980
Inventors
John H. Brems
John L. Vaphiadis
Assignee (at issue)
F. Jos. Lamb 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.