Granted Patent
Utility
US 6,830,251 · App. 09/880,882
Ice skate blade
Inventor:
Conrad Peter Titzmann
Patented Case
View Patent ↗
Granted: Dec 14, 2004
Filed: Jun 15, 2001
Inventor
Conrad Peter Titzmann
Assignee (at issue)
Conrad Peter Titzmann
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.