Granted Patent
Utility
US 6,230,330 · App. 09/459,279
Waterproof hat construction and method for manufacturing
Inventor:
Sharon L. Steffy
Patented Case
View Patent ↗
Granted: May 15, 2001
Filed: Dec 13, 1999
Inventor
Sharon L. Steffy
Assignee (at issue)
Bollman Hat Company
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.