Granted Patent
Utility
US 5,907,447 · App. 08/893,316
Radial self-propagation pattern generation for disk file servowriting
Inventors:
Edward J. Yarmchuk, Mark D. Schultz, Bucknell C. Webb, Timothy J. Chainer
Patented Case
View Patent ↗
Granted: May 25, 1999
Filed: Jul 16, 1997
Inventors
Edward J. Yarmchuk
Mark D. Schultz
Bucknell C. Webb
Timothy J. Chainer
Assignee (at issue)
International Business Machines 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.