Granted Patent
Utility
US 4,357,765 · App. 06/281,442
Apparatus for securing overlapping portions of two digger tooth members together
Inventor:
James E. Seykora
Patented Case
View Patent ↗
Granted: Nov 9, 1982
Filed: Jul 8, 1981
Inventor
James E. Seykora
Assignee (at issue)
United States Steel 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.