Granted Patent
Utility
US 6,315,230 · App. 09/542,533
Tape reel assembly with washer guard for a data storage tape cartridge
Inventors:
Carter J. Hansen, William D. Lewis
Patented Case
View Patent ↗
Granted: Nov 13, 2001
Filed: Apr 4, 2000
Inventors
Carter J. Hansen
William D. Lewis
Assignee (at issue)
Imation Corp.
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.