Granted Patent
Utility
US 3,947,886 · App. 05/464,054
Flexible disc recording apparatus
Inventors:
Robert F. Hiedecker, A. Kenneth Johnson, Galen B. Royer
Patented Case
View Patent ↗
Granted: Mar 30, 1976
Filed: Apr 25, 1974
Inventors
Robert F. Hiedecker
A. Kenneth Johnson
Galen B. Royer
Assignee (at issue)
Dynastor, 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.