Granted Patent
Utility
US 6,726,421 · App. 09/949,696
Tanged screw thread inserts with improved removability
Inventors:
William Giannakakos, John Carvalho
Patented Case
View Patent ↗
Granted: Apr 27, 2004
Filed: Sep 10, 2001
Inventors
William Giannakakos
John Carvalho
Assignee (at issue)
Newfrey LLC
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.