IP Library › Granted Patent US 6,798,891
Granted Patent Utility PCT National Stage
US 6,798,891 · Confirmation No. 7905

SPEAKER SYSTEM

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2004-08-06 IFEE Issue Fee Payment (PTO-85B) 1 View
2001-08-29 LET. Miscellaneous Incoming Letter 79 View
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Quick Facts
Patent No.
US 6,798,891
App. No.
09/914,540
Filed
2001-08-29
Granted
2004-09-28
Art Unit
2644
PTA
0 days