Granted Patent
Utility
US 4,692,898 · App. 06/204,728
Bubble memory bias field structure
Inventors:
Gale A. Jallen, Gene Patrick Bonnie
Patented Case
View Patent ↗
Granted: Sep 8, 1987
Filed: Nov 6, 1980
Inventors
Gale A. Jallen
Gene Patrick Bonnie
Assignee (at issue)
Control Data 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.