Granted Patent
Utility
US 4,508,577 · App. 06/489,771
Fluid jet apparatus and method for cleaning tubular components
Inventors:
Andrew F. Conn, William T. Lindenmuth, Gary S. Frederick
Patented Case
View Patent ↗
Granted: Apr 2, 1985
Filed: Apr 29, 1983
Inventors
Andrew F. Conn
William T. Lindenmuth
Gary S. Frederick
Assignee (at issue)
Tracor Hydronautics, 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.