Granted Patent
Utility
US 4,301,529 · App. 06/113,230
Drive control mechanism for a phonograph
Inventor:
Ronald D. Irvin
Patented Case
View Patent ↗
Granted: Nov 17, 1981
Filed: Jan 18, 1980
Inventor
Ronald D. Irvin
Assignee (at issue)
The Quaker Oats Company
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.