Granted Patent
Utility
US 5,987,474 · App. 09/111,041
Computer aided maintenance and repair information system for equipment subject to regulatory compliance
Inventor:
Michael A. Sandifer
Patented Case
View Patent ↗
Granted: Nov 16, 1999
Filed: Jul 7, 1998
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.