Granted Patent
Utility
US 4,348,063 · App. 06/219,758
Ball bearing slide
Inventor:
William I. Chambers
Patented Case
View Patent ↗
Granted: Sep 7, 1982
Filed: Dec 23, 1980
Inventor
William I. Chambers
Assignee (at issue)
NCR 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.