IP Library › Patent Application 61254020
Patent Application Provisional
App. No. 61/254,020 · Confirmation No. 7615

DUAL MICROPHONE NOISE SUPPRESSION SYSTEM FOR CELLULAR PHONE

Inventor: Xianxian Zhang
Provisional Application Expired
⬇ PDF
 Code Description Pages PDF
2009-11-05 APP.FILE.REC Filing Receipt 3 View
2009-10-22 TR.PROV Provisional Cover Sheet (SB16) 3 View
2009-10-22 SPEC Specification 9 View
2009-10-22 WFEE Fee Worksheet (SB06) 2 View
2009-10-22 N417 Electronic Filing System Acknowledgment Receipt 2 View
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Quick Facts
App. No.
61/254,020
Filed
2009-10-22