Granted Patent
Utility
US 5,271,566 · App. 07/964,351
Self-orienting spray nozzle system
Inventor:
Paul L. Dederich
Patented Case
View Patent ↗
Granted: Dec 21, 1993
Filed: Oct 21, 1992
Inventor
Paul L. Dederich
Assignee (at issue)
D. B. Smith & Co. 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.