Granted Patent
Utility
US 6,351,853 · App. 09/586,123
Helmet fitting system
Inventors:
P. David Halstead, Cherie Alexander
Patented Case
View Patent ↗
Granted: Mar 5, 2002
Filed: Jun 2, 2000
Inventors
P. David Halstead
Cherie Alexander
Assignee (at issue)
Southern Impact Research Center, LLC
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.