Granted Patent
Utility
US 5,873,690 · App. 08/010,646
Thread nut expansion fastener
Inventors:
Michael Richard Danby, James Richard Mumby
Patented Case
View Patent ↗
Granted: Feb 23, 1999
Filed: Jan 22, 1998
Inventors
Michael Richard Danby
James Richard Mumby
Assignee (at issue)
Eaton 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.