Granted Patent
Utility
US 4,887,774 · App. 07/229,308
Safety nut assembly for backstand apparatus
Inventors:
Eddie Phillips, Dyle Harville, Mildred Lee, Danny Kirby, Kathleen Ellison, Mary J. Smithy, Eugene McNutt, Yvonne Gholston, Jim Brewer, Charles McClure
Patented Case
View Patent ↗
Granted: Dec 19, 1989
Filed: Aug 8, 1988
Inventors
Eddie Phillips
Dyle Harville
Mildred Lee
Danny Kirby
Kathleen Ellison
Mary J. Smithy
Eugene McNutt
Yvonne Gholston
Jim Brewer
Charles McClure
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.