Granted Patent
Utility
US 6,647,653 · App. 10/145,463
Firing element for muzzleloading rifle
Inventor:
Eric Hengstenberg
Patented Case
View Patent ↗
Granted: Nov 18, 2003
Filed: May 14, 2002
Inventor
Eric Hengstenberg
Assignee (at issue)
BBSCO Industries, Inc.
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.