Granted Patent
Utility
US 4,760,978 · App. 06/932,633
Ice-free screen for protecting engines from damage caused by foreign bodies in the intake airstream
Inventors:
Martin Schuyler, John L. Cox
Patented Case
View Patent ↗
Granted: Aug 2, 1988
Filed: Nov 19, 1986
Inventors
Martin Schuyler
John L. Cox
Assignee (at issue)
Cox & Company, Inc.
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.