Granted Patent
Utility
US 4,473,923 · App. 06/376,973
Vacuum cleaning tool adapter with electrical control means
Inventors:
Peter J. Neroni, Robert E. Stevens, Joe L. Byers
Patented Case
View Patent ↗
Granted: Oct 2, 1984
Filed: May 10, 1982
Inventors
Peter J. Neroni
Robert E. Stevens
Joe L. Byers
Assignee (at issue)
DayCo Holdings, LP
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.