Granted Patent
Utility
US 6,535,890 · App. 09/956,615
Computer aided maintenance and repair information system for equipment subject to regulatory compliance
Inventor:
Michael A. Sandifer
Patented Case
View Patent ↗
Granted: Mar 18, 2003
Filed: Sep 17, 2001
Inventor
Michael A. Sandifer
Assignee (at issue)
Aircraft Technical Publishers
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.