Granted Patent
Utility
US 3,991,724 · App. 05/447,440
Apparatus for moisture addition to engine air-fuel input
Inventor:
Edward M. Geiser
Patented Case
View Patent ↗
Granted: Nov 16, 1976
Filed: Mar 1, 1974
Inventor
Edward M. Geiser
Assignee (at issue)
Universal Oil Products 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.