Granted Patent
Utility
US 4,948,409 · App. 07/395,509
Multiple segment spinner
Inventors:
Vaughn Charles Chenoweth, Doyle Gieselman, Vernon L. Wainwright
Patented Case
View Patent ↗
Granted: Aug 14, 1990
Filed: Aug 18, 1989
Inventors
Vaughn Charles Chenoweth
Doyle Gieselman
Vernon L. Wainwright
Assignee (at issue)
Guardian Industries Corp.
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.