Granted Patent
Utility
US 4,321,044 · App. 05/960,525
Advanced G cueing system
Inventor:
Gerald J. Kron
Patented Case
View Patent ↗
Granted: Mar 23, 1982
Filed: Nov 14, 1978
Inventor
Gerald J. Kron
Assignee (at issue)
The Singer Company Limited
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.