Granted Patent
Utility
US 4,685,687 · App. 06/773,322
Workholder
Inventors:
William E. Hall, Edward D. Gailey, George J. Ovanin
Patented Case
View Patent ↗
Granted: Aug 11, 1987
Filed: Sep 6, 1985
Inventors
William E. Hall
Edward D. Gailey
George J. Ovanin
Assignee (at issue)
The S-P Manufacturing Corporation
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.