Granted Patent
Utility
US 5,556,242 · App. 08/261,682
Space frame for a machine tool
Inventors:
Paul Sheldon, Edward E. Kirkham
Patented Case
View Patent ↗
Granted: Sep 17, 1996
Filed: Jun 17, 1994
Inventors
Paul Sheldon
Edward E. Kirkham
Assignee (at issue)
Giddings & Lewis, 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.