IP Library › Patent Application 09753660
Patent Application Utility
App. No. 09/753,660 · Confirmation No. 1864

PROCESS FOR PURIFYING A GAS BY ADSORPTION OF THE IMPURITIES ON SEVERAL ACTIVE CARBONS

Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 View Patent ↗ View Publication ↗
⬇ PDF
 Code Description Pages PDF
2001-01-04 TRNA Transmittal of New Application 2 View
2001-01-04 ADS Application Data Sheet 1 View
2001-01-04 A.PE Preliminary Amendment 2 View
2001-01-04 SPEC Specification 18 View
2001-01-04 CLM Claims 4 View
2001-01-04 ABST Abstract 1 View
2001-01-04 DRW Drawings-only black and white line drawings 1 View
2001-01-04 OATH Oath or Declaration filed 2 View
2001-01-04 LET. Miscellaneous Incoming Letter 1 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.
09/753,660
Filed
2001-01-04
Granted
2002-06-11
Pub. No.
US20010009125A1
Art Unit
1724
PTA
-70 days