Granted Patent
Utility
US 5,220,787 · App. 07/692,440
Scramjet injector
Inventor:
Melvin J. Bulman
Patented Case
View Patent ↗
Granted: Jun 22, 1993
Filed: Apr 29, 1991
Inventor
Melvin J. Bulman
Assignee (at issue)
AEROJET-GENERAL 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.