Granted Patent
Utility
US 4,774,975 · App. 06/651,398
Method and apparatus for providing oscillating contaminant-removal stream
Inventors:
David L. Ayers, Terry Wright, Michael C. Skriba
Patented Case
View Patent ↗
Granted: Oct 4, 1988
Filed: Sep 17, 1984
Inventors
David L. Ayers
Terry Wright
Michael C. Skriba
Assignee (at issue)
Westinghouse Electric Company LLC
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.