IP Library Granted Patent US 6,692,875
Granted Patent Utility
US 6,692,875 · Confirmation No. 2024

MASK FOR OPTICAL PROJECTION SYSTEMS, AND A PROCESS FOR ITS PRODUCTION

⬇ PDF
Code Description Pages PDF
2003-12-29 IFEE Issue Fee Payment (PTO-85B) 1 View
2001-04-20 TRNA Transmittal of New Application 1 View
2001-04-20 SPEC Specification 20 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 6,692,875
App. No.
09/839,764
Filed
2001-04-20
Granted
2004-02-17
Pub. No.
US20020006554A1
Examiner
SAGAR, KRIPA
Art Unit
1756
PTA
-14 days