Granted Patent
Utility
US 4,821,169 · App. 07/015,576
Access verification arrangement for digital data processing system which has demand-paged memory with page crossing detection
Inventors:
Richard L. Sites, Stanley A. Lackey, Jr.
Patented Case
View Patent ↗
Granted: Apr 11, 1989
Filed: Feb 11, 1987
Inventors
Richard L. Sites
Stanley A. Lackey, Jr.
Assignee (at issue)
Digital Equipment 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.