Granted Patent
Utility
US 6,148,271 · App. 09/007,241
Speed, spin rate, and curve measuring device
Inventor:
Dave Marinelli
Patented Case
View Patent ↗
Granted: Nov 14, 2000
Filed: Jan 14, 1998
Inventor
Dave Marinelli
Assignee (at issue)
Silicon Pipe, 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.