IP Library › Granted Patent US 6,574,025
Granted Patent Utility Small
US 6,574,025 · Confirmation No. 9024

OPTICAL SWITCHING BY CONTROLLABLE FRUSTRATION OF TOTAL INTERNAL REFLECTION

Patented Case View Patent ↗ View Publication ↗
⬇ PDF
 Code Description Pages PDF
2020-06-19 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2020-06-19 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2020-06-10 PA.. Power of Attorney 1 View
2020-06-10 N417 Electronic Filing System Acknowledgment Receipt 2 View
2020-06-10 R3.73 Assignee showing of ownership per 37 CFR 3.73 2 View
2020-06-10 R3.73 Assignee showing of ownership per 37 CFR 3.73 2 View
2020-04-23 OATH Oath or Declaration filed 13 View
2002-02-08 TRNA Transmittal of New Application 1 View
2002-02-08 SPEC Specification 12 View
2002-02-08 CLM Claims 2 View
2002-02-08 ABST Abstract 1 View
2002-02-08 DRW Drawings-only black and white line drawings 4 View
2002-02-08 OATH Oath or Declaration filed 4 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 6,574,025
App. No.
10/067,736
Filed
2002-02-08
Granted
2003-06-03
Pub. No.
US20020105709A1
Examiner
PHAN, JAMES
Art Unit
2872
PTA
0 days