Granted Patent
Utility
US 5,590,992 · App. 08/423,421
Cover for a bolt and nut
Inventor:
Vincent T. Russell
Patented Case
View Patent ↗
Granted: Jan 7, 1997
Filed: Apr 18, 1995
Inventor
Vincent T. Russell
Assignee (at issue)
Aluminum Company of America
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.