IP Library › Granted Patent US 6,771,778
Granted Patent Utility
US 6,771,778 · Confirmation No. 6296

METHOD AND SIGNAL PROCESSING DEVICE FOR CONVERTING STEREO SIGNALS FOR HEADPHONE LISTENING

Inventor: Ole Kirkeby
Patented Case View Patent ↗ View Publication ↗
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2015-07-07 OATH Oath or Declaration filed 43 View
2005-01-27 COCOUT Certificate of Correction - Post Issue Communication 1 View
2004-04-29 IFEE Issue Fee Payment (PTO-85B) 1 View
2004-04-29 LET. Miscellaneous Incoming Letter 2 View
2004-04-29 FOR Foreign Reference 86 View
2004-04-29 FOR Foreign Reference 122 View
2004-04-29 FOR Foreign Reference 68 View
2004-03-17 IDS Information Disclosure Statement (IDS) Form (SB08) 8 View
2001-09-28 TRNA Transmittal of New Application 3 View
2001-09-28 SPEC Specification 18 View
2001-09-28 CLM Claims 5 View
2001-09-28 ABST Abstract 1 View
2001-09-28 DRW Drawings-only black and white line drawings 6 View
2001-09-28 OATH Oath or Declaration filed 3 View
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Quick Facts
Patent No.
US 6,771,778
App. No.
09/967,620
Filed
2001-09-28
Granted
2004-08-03
Pub. No.
US20020039421A1
Art Unit
2644
PTA
-120 days