Granted Patent
Utility
US 4,640,116 · App. 06/772,278
Two-out belt system
Inventor:
Omar L. Brown
Patented Case
View Patent ↗
Granted: Feb 3, 1987
Filed: Sep 3, 1985
Inventor
Omar L. Brown
Assignee (at issue)
Dayton Reliable Tool & Mfg. Co.
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.