Granted Patent
Utility
US 4,721,134 · App. 06/892,822
Terry loop ratio control device
Inventors:
Martin C. Dorman, James F. Byrd, Earl Whaley
Patented Case
View Patent ↗
Granted: Jan 26, 1988
Filed: Aug 4, 1986
Inventors
Martin C. Dorman
James F. Byrd
Earl Whaley
Assignee (at issue)
West Point Pepperell
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.