Granted Patent
Utility
US 5,861,572 · App. 08/867,104
Universal shotgun shell wad
Inventor:
Heiner J. Schuermann
Patented Case
View Patent ↗
Granted: Jan 19, 1999
Filed: Jun 2, 1997
Inventor
Heiner J. Schuermann
Assignee (at issue)
Alltrista 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.