Granted Patent
Utility
US 6,000,492 · App. 09/106,080
Cerumen block for sound delivery system
Inventors:
Steven H. Puthuff, David L. Luger, Jon C. Taenzer
Patented Case
View Patent ↗
Granted: Dec 14, 1999
Filed: Jun 29, 1998
Inventors
Steven H. Puthuff
David L. Luger
Jon C. Taenzer
Assignee (at issue)
ReSound Corporation
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.