Granted Patent
Utility
US 4,781,852 · App. 06/923,063
Process for making selected doped barium and strontium hexaferrite particles
Inventors:
Jerry J. Kaczur, J. Paul Deininger, Larry D. Carpenter
Patented Case
View Patent ↗
Granted: Nov 1, 1988
Filed: Oct 24, 1986
Inventors
Jerry J. Kaczur
J. Paul Deininger
Larry D. Carpenter
Assignee (at issue)
Olin 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.