Granted Patent
Utility
US 5,336,028 · App. 08/047,097
Captive screw assembly
Inventor:
Albert K. Yamamoto
Patented Case
View Patent ↗
Granted: Aug 9, 1994
Filed: Apr 13, 1993
Inventor
Albert K. Yamamoto
Assignee (at issue)
VSI, LLC
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.