Granted Patent
Utility
US 5,239,740 · App. 07/954,202
Method of installing sealing fastener
Inventor:
Harold A. Ladouceur
Patented Case
View Patent ↗
Granted: Aug 31, 1993
Filed: Sep 30, 1992
Inventor
Harold A. Ladouceur
Assignee (at issue)
Multifastener 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.