Granted Patent
Utility
US 4,598,544 · App. 06/489,530
Medium bypass turbofan engine
Inventors:
Sam Williams, John F. Jones, David K. Dorer
Patented Case
View Patent ↗
Granted: Jul 8, 1986
Filed: Apr 28, 1983
Inventors
Sam Williams
John F. Jones
David K. Dorer
Assignee (at issue)
WILLIAMS INTERNATIONAL CO., L.L.C.
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.