Granted Patent
Utility
US 4,800,380 · App. 06/452,000
Multi-plane page mode video memory controller
Inventors:
Richard Lowenthal, Larke E. Reeber, Drew S. Hoffman, Michael Jason Ramsay
Patented Case
View Patent ↗
Granted: Jan 24, 1989
Filed: Dec 21, 1982
Inventors
Richard Lowenthal
Larke E. Reeber
Drew S. Hoffman
Michael Jason Ramsay
Assignee (at issue)
Convergent.io Technologies Inc.
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.