IP Library › Granted Patent US D457,156
Granted Patent Design
US D457,156 · Confirmation No. 7871

AUDIO HEADPIECE

Inventor: Thanh Q. Nguyen
Patented Case View Patent ↗
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 Code Description Pages PDF
2001-05-29 TRNA Transmittal of New Application 2 View
2001-05-29 SPEC Specification 2 View
2001-05-29 CLM Claims 1 View
2001-05-29 DRW Drawings-only black and white line drawings 4 View
2001-05-29 OATH Oath or Declaration filed 2 View
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Quick Facts
Patent No.
US D457,156
App. No.
29/142,655
Filed
2001-05-29
Granted
2002-05-14
Art Unit
2912
PTA
0 days