Granted Patent
Utility
US 4,790,495 · App. 07/122,556
Cascade thrust reverser
Inventors:
William K. Greathouse, Sherman F. Martin
Patented Case
View Patent ↗
Granted: Dec 13, 1988
Filed: Nov 12, 1987
Inventors
William K. Greathouse
Sherman F. Martin
Assignee (at issue)
Grumman Aerospace 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.