Granted Patent
Utility
US 4,555,449 · App. 06/578,422
Magnetic recording medium
Inventors:
Joseph V. Koleske, Glenn S. Peacock, George T. Kwiatkowski
Patented Case
View Patent ↗
Granted: Nov 26, 1985
Filed: Feb 9, 1984
Inventors
Joseph V. Koleske
Glenn S. Peacock
George T. Kwiatkowski
Assignee (at issue)
Union Carbide 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.