Granted Patent
Utility
US 5,758,752 · App. 08/813,481
Automatically extendable and retractable wheel assembly for luggage
Inventors:
William L. King, David A. Crumrine
Patented Case
View Patent ↗
Granted: Jun 2, 1998
Filed: Mar 7, 1997
Inventors
William L. King
David A. Crumrine
Assignee (at issue)
Samsonite Corporation
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.