Granted Patent
Utility
US 5,419,021 · App. 08/049,759
Telescoping slot nozzle
Inventor:
Paul Seroogy
Patented Case
View Patent ↗
Granted: May 30, 1995
Filed: Apr 20, 1993
Inventor
Paul Seroogy
Assignee (at issue)
W.R. Grace & Co. Conn.
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.