U.S. patent number D398,309 [Application Number D/065,741] was granted by the patent office on 1998-09-15 for headset. This patent grant is currently assigned to David Clark Company Inc.. Invention is credited to James T. Bergin, Richard M. Urella.
United States Patent | D398,309 |
Bergin , et al. | September 15, 1998 |
Inventors: | Bergin; James T. (Rochdale, MA), Urella; Richard M. (Charlton, MA) |
---|---|
Assignee: | David Clark Company Inc.
(Worcester, MA) |
Appl. No.: | D/065,741 |
Filed: | April 18, 1996 |
Application Number | Filing Date | Patent Number | Issue Date | ||
---|---|---|---|---|---|
37848 | Apr 21, 1995 | ||||
Current U.S. Class: | D14/206 |
Current International Class: | 1401 |
Field of Search: | ;D14/137,147,148,192,249,205,206,223,224,299 ;181/129,130 ;379/430,431,444 ;381/25,68,74,151,183,187 |
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