Granted Patent
Utility
US 6,279,172 · App. 09/497,032
Custom fitting assembly for helmet
Inventors:
William Lewis Epperson, Francis J. Kuna, Robert H. Nattress
Patented Case
View Patent ↗
Granted: Aug 28, 2001
Filed: Feb 2, 2000
Inventors
William Lewis Epperson
Francis J. Kuna
Robert H. Nattress
Assignee (at issue)
GENTEX 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.