Granted Patent
Utility
US 5,346,476 · App. 07/875,756
Fluid delivery system
Inventor:
Edward E. Elson
Patented Case
View Patent ↗
Granted: Sep 13, 1994
Filed: Apr 29, 1992
Inventor
Edward E. Elson
Assignee (at issue)
Edward Elson
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.