Granted Patent
Utility
US 4,451,949 · App. 06/286,393
Safety shoe and method for making same
Inventor:
Thomas F. Long
Patented Case
View Patent ↗
Granted: Jun 5, 1984
Filed: Jul 23, 1981
Inventor
Thomas F. Long
Assignee (at issue)
Interco Incorporated
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.