IP Library › Granted Patent US 6,645,657
Granted Patent Utility
US 6,645,657 · Confirmation No. 6439

SOL-GEL COATED CATHODE SIDE HARDWARE FOR CARBONATE FUEL CELLS

Inventors: Chao Huang, Jian Li
Patented Case View Patent ↗ View Publication ↗
⬇ PDF
 Code Description Pages PDF
2016-03-09 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2016-03-09 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2015-11-09 R3.73 Assignee showing of ownership per 37 CFR 3.73 1 View
2015-11-09 PA.. Power of Attorney 1 View
2015-11-09 N417 Electronic Filing System Acknowledgment Receipt 2 View
2015-04-29 IMIS Miscellaneous Internal Document 1 View
2001-08-30 TRNA Transmittal of New Application 2 View
2001-08-30 DRW Drawings-only black and white line drawings 3 View
2001-08-30 DRW Drawings-only black and white line drawings 3 View
2001-08-30 DRW Drawings-only black and white line drawings 2 View
2001-08-30 LET. Miscellaneous Incoming Letter 1 View
2001-05-03 TRNA Transmittal of New Application 4 View
2001-05-03 SPEC Specification 14 View
2001-05-03 CLM Claims 1 View
2001-05-03 ABST Abstract 1 View
2001-05-03 DRW Drawings-only black and white line drawings 7 View
2001-05-03 OATH Oath or Declaration filed 5 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 6,645,657
App. No.
09/848,023
Filed
2001-05-03
Granted
2003-11-11
Pub. No.
US20020164522A1
Art Unit
1745
PTA
-120 days