Granted Patent
Utility
US 5,038,596 · App. 07/444,260
Threaded cold working mandrel
Inventors:
Denis E. Noonan, Philip F. Scala
Patented Case
View Patent ↗
Granted: Aug 13, 1991
Filed: Dec 1, 1989
Inventors
Denis E. Noonan
Philip F. Scala
Assignee (at issue)
Grumman Aerospace 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.