Granted Patent
Utility
US 4,639,863 · App. 06/741,175
Modular unitary disk file subsystem
Inventors:
Joel N. Harrison, William G. Moon, Randolph H. Graham
Patented Case
View Patent ↗
Granted: Jan 27, 1987
Filed: Jun 4, 1985
Inventors
Joel N. Harrison
William G. Moon
Randolph H. Graham
Assignee (at issue)
Plus Development
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.