IP Library › Patent Application 09933882
Patent Application Utility
App. No. 09/933,882 · Confirmation No. 6375

METHOD AND APPARATUS FOR PURIFYING SILICON

Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 View Patent ↗ View Publication ↗
⬇ PDF
 Code Description Pages PDF
2011-12-22 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2011-12-22 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2011-12-14 PA.. Power of Attorney 4 View
2011-12-14 N417 Electronic Filing System Acknowledgment Receipt 2 View
2010-03-31 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2010-03-31 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2010-03-31 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2010-03-25 PA.. Power of Attorney 1 View
2010-03-25 R3.73 Assignee showing of ownership per 37 CFR 3.73 2 View
2010-03-25 N417 Electronic Filing System Acknowledgment Receipt 2 View
2003-08-18 IFEE Issue Fee Payment (PTO-85B) 1 View
2001-08-21 TRNA Transmittal of New Application 3 View
2001-08-21 ADS Application Data Sheet 2 View
2001-08-21 SPEC Specification 10 View
2001-08-21 CLM Claims 4 View
2001-08-21 ABST Abstract 1 View
2001-08-21 DRW Drawings-only black and white line drawings 6 View
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this application's details
Quick Facts
App. No.
09/933,882
Filed
2001-08-21
Granted
2003-10-14
Pub. No.
US20020021996A1
Art Unit
1754
PTA
-121 days