Granted Patent
Utility
US 6,131,838 · App. 09/326,209
Saddle-back hammer tip
Inventors:
Loran R. Balvanz, Paul R. Gray
Patented Case
View Patent ↗
Granted: Oct 17, 2000
Filed: Jun 4, 1999
Inventors
Loran R. Balvanz
Paul R. Gray
Assignee (at issue)
U.S. MANUFACTURING 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.