Granted Patent
Utility
US 4,943,907 · App. 07/048,022
Speed controller for recording and playback apparatus
Inventor:
Kurt E. Godwin
Patented Case
View Patent ↗
Granted: Jul 24, 1990
Filed: May 8, 1987
Inventor
Kurt E. Godwin
Assignee (at issue)
Colorado Memory Systems, 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.