Granted Patent
Utility
US 4,733,503 · App. 06/858,373
Abrasive jet machining
Inventors:
Ben J. Gallant, Walter Kulischenko
Patented Case
View Patent ↗
Granted: Mar 29, 1988
Filed: May 1, 1986
Inventors
Ben J. Gallant
Walter Kulischenko
Assignee (at issue)
Airsonics License Partnership
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.