Granted Patent
Utility
US 5,243,124 · App. 07/854,080
Electronic musical instrument using FM sound generation with delayed modulation effect
Inventors:
Clifford Kondratiuk, Karim Mitha
Patented Case
View Patent ↗
Granted: Sep 7, 1993
Filed: Mar 19, 1992
Inventors
Clifford Kondratiuk
Karim Mitha
Assignee (at issue)
Sierra Semiconductor Canada, 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.