Granted Patent
Utility
US 5,374,479 · App. 07/896,148
Magnetic recording medium comprising 4,5-dichloro-2-octyl-4-isothiazoline-3-one anti mold agent in the magnetic layer or backcoat layer
Inventors:
Makoto Hirama, Ikuo Matsumoto
Patented Case
View Patent ↗
Granted: Dec 20, 1994
Filed: Jun 9, 1992
Inventors
Makoto Hirama
Ikuo Matsumoto
Assignee (at issue)
Victor Company of Japan, Ltd.
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.