Granted Patent
Utility
US 6,724,401 · App. 09/236,105
Computer-based documentation and instruction
Inventors:
Erik Hennum, Landon L. Ott
Patented Case
View Patent ↗
Granted: Apr 20, 2004
Filed: Jan 25, 1999
Inventors
Erik Hennum
Landon L. Ott
Assignee (at issue)
International Business Machines 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.