IP Library › Patent Application 09921452
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App. No. 09/921,452 · Confirmation No. 6112

AUTOMATIC REFILL SYSTEM FOR ULTRA PURE OR CONTAMINATION SENSITIVE CHEMICALS

Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 View Patent ↗ View Publication ↗
⬇ PDF
 Code Description Pages PDF
2008-06-16 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2008-05-30 PA.. Power of Attorney 10 View
2008-05-30 N417 Electronic Filing System Acknowledgment Receipt 2 View
2001-08-02 TRNA Transmittal of New Application 2 View
2001-08-02 SPEC Specification 21 View
2001-08-02 CLM Claims 3 View
2001-08-02 ABST Abstract 1 View
2001-08-02 DRW Drawings-only black and white line drawings 3 View
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Quick Facts
App. No.
09/921,452
Filed
2001-08-02
Granted
2002-08-20
Pub. No.
US20020014275A1
Art Unit
3751
PTA
0 days