Granted Patent
Utility
US 4,908,759 · App. 07/147,319
Hierarchical database conversion with conditional write
Inventors:
Everett L. Alexander, Jr., Allan R. Carlin, Alice L. Fiore, Walter A. Mackiewicz
Patented Case
View Patent ↗
Granted: Mar 13, 1990
Filed: Jan 21, 1988
Inventors
Everett L. Alexander, Jr.
Allan R. Carlin
Alice L. Fiore
Walter A. Mackiewicz
Assignee (at issue)
Bell Communications Research, 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.