Granted Patent
Utility
US 4,512,460 · App. 06/480,223
Glass sheet roller conveyor including antifriction drive chain
Inventor:
Ronald A. McMaster
Patented Case
View Patent ↗
Granted: Apr 23, 1985
Filed: Mar 30, 1983
Inventor
Ronald A. McMaster
Assignee (at issue)
Glasstech, 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.