Granted Patent
Utility
US 4,694,269 · App. 06/638,876
Magnet system and method of its manufacture
Inventors:
Sibley C. Burnett, John R. Purcell, M. Harlan Horner
Patented Case
View Patent ↗
Granted: Sep 15, 1987
Filed: Aug 8, 1984
Inventors
Sibley C. Burnett
John R. Purcell
M. Harlan Horner
Assignee (at issue)
GA 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.