Granted Patent
Utility
US 6,259,798 · App. 09/118,508
Passive radiator cooled electronics/heat sink housing for a powered speaker
Inventors:
Calvin C. Perkins, Terry L. Wetherbee, David D. Bie
Patented Case
View Patent ↗
Granted: Jul 10, 2001
Filed: Jul 17, 1998
Inventors
Calvin C. Perkins
Terry L. Wetherbee
David D. Bie
Assignee (at issue)
Mackie Designs 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.