Granted Patent
Utility
US 4,186,877 · App. 05/699,858
By-pass nozzles
Inventors:
Richard L. Wilcox, Sherman E. Conrad
Patented Case
View Patent ↗
Granted: Feb 5, 1980
Filed: Jun 25, 1976
Inventors
Richard L. Wilcox
Sherman E. Conrad
Assignee (at issue)
Delavan Manufacturing Company
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.