IP Library Granted Patent US 6,621,180
Granted Patent Utility
US 6,621,180 · Confirmation No. 3630

METHOD AND SYSTEM FOR MAINTAINING FULL POWER DURING A POWER INTERRUPTION IN A MULTIPLE POWER SUPPLY SYSTEM

⬇ PDF
Code Description Pages PDF
2015-11-05 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
2015-06-08 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2015-06-08 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2003-07-15 IFEE Issue Fee Payment (PTO-85B) 1 View
2003-07-15 C.AD Change of Address 1 View
2003-07-15 LET. Miscellaneous Incoming Letter 1 View
2003-07-15 DRW Drawings-only black and white line drawings 1 View
2001-07-16 DRW Drawings-only black and white line drawings 3 View
2001-04-20 TRNA Transmittal of New Application 4 View
2001-04-20 SPEC Specification 7 View
2001-04-20 CLM Claims 4 View
2001-04-20 ABST Abstract 1 View
2001-04-20 DRW Drawings-only black and white line drawings 3 View
2001-04-20 OATH Oath or Declaration filed 3 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 6,621,180
App. No.
09/839,043
Filed
2001-04-20
Granted
2003-09-16
Pub. No.
US20020153777A1
Art Unit
2836
PTA
-67 days