Granted Patent
Utility
US 4,701,858 · App. 06/688,035
Nonvolatile realtime clock calendar module
Inventors:
John H. Stokes, John I. Clark, James Morris, Steven M. Ward
Patented Case
View Patent ↗
Granted: Oct 20, 1987
Filed: Dec 31, 1984
Inventors
John H. Stokes
John I. Clark
James Morris
Steven M. Ward
Assignee (at issue)
Energy Optics, Incorporated
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.