Granted Patent
Utility
US 5,881,221 · App. 08/777,663
Driver level diagnostics
Inventors:
Thanh V. Hoang, Paul Fontenot
Patented Case
View Patent ↗
Granted: Mar 9, 1999
Filed: Dec 31, 1996
Inventors
Thanh V. Hoang
Paul Fontenot
Assignee (at issue)
Compaq Computer 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.