Granted Patent
Utility
US 5,417,136 · App. 08/184,288
Conga rim
Inventors:
Donald Kralik, Wayne Cohen
Patented Case
View Patent ↗
Granted: May 23, 1995
Filed: Jan 21, 1994
Inventors
Donald Kralik
Wayne Cohen
Assignee (at issue)
Latin Percussion 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.