IP Library Granted Patent US 6,652,827
Granted Patent Utility PCT National Stage
US 6,652,827 · Confirmation No. 9223

PROCESS FOR THE RECOVERY OF SULPHUR FROM A HYDROGEN SULPHIDE, CONTAINING GAS

Patented Case View Patent ↗
⬇ PDF
Code Description Pages PDF
2005-07-26 COCOUT Certificate of Correction - Post Issue Communication 1 View
2003-09-26 IFEE Issue Fee Payment (PTO-85B) 1 View
2001-05-01 LET. Miscellaneous Incoming Letter 45 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
Patent No.
US 6,652,827
App. No.
09/763,561
Filed
2001-05-01
Granted
2003-11-25
Art Unit
1754
PTA
0 days