Granted Patent
Utility
US 5,952,580 · App. 08/941,477
Apparatus and method for producing shafts having preselected lengths and flexural properties
Inventor:
Neal Haas
Patented Case
View Patent ↗
Granted: Sep 14, 1999
Filed: Sep 30, 1997
Inventor
Neal Haas
Assignee (at issue)
Grafalloy
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.