Granted Patent
Utility
US 4,928,206 · App. 07/274,571
Foldable printed circuit board
Inventors:
Warren W. Porter, Donald K. Lauffer
Patented Case
View Patent ↗
Granted: May 22, 1990
Filed: Nov 23, 1988
Inventors
Warren W. Porter
Donald K. Lauffer
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.