IP Library Patent Application 09905634
Patent Application Utility Small
App. No. 09/905,634 · Confirmation No. 2691

ELECTROSTATIC LOUDSPEAKER WITH A DISTRIBUTED FILTER

Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 View Patent ↗ View Publication ↗
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Code Description Pages PDF
2004-05-24 IFEE Issue Fee Payment (PTO-85B) 1 View
2004-05-24 LET. Miscellaneous Incoming Letter 2 View
2004-05-24 DRW Drawings-only black and white line drawings 5 View
2001-07-13 TRNA Transmittal of New Application 2 View
2001-07-13 SPEC Specification 23 View
2001-07-13 CLM Claims 13 View
2001-07-13 ABST Abstract 1 View
2001-07-13 DRW Drawings-only black and white line drawings 5 View
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Quick Facts
App. No.
09/905,634
Filed
2001-07-13
Granted
2004-07-06
Pub. No.
US20020080984A1
Art Unit
2643
PTA
-147 days