Granted Patent
Utility
US 4,570,858 · App. 06/457,196
Coated spray nozzle tips
Inventors:
Dennis W. Bintner, Joseph B. Ryan, Jr., Mark Bartel
Patented Case
View Patent ↗
Granted: Feb 18, 1986
Filed: Jan 11, 1983
Inventors
Dennis W. Bintner
Joseph B. Ryan, Jr.
Mark Bartel
Assignee (at issue)
Delavan 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.