IP Library › Granted Patent US 6,431,452
Granted Patent Utility
US 6,431,452 · Confirmation No. 3011

PORTABLE DATA COLLECTION DEVICE WITH VARIABLE FOCUSING MODULE FOR OPTIC ASSEMBLY

Inventor: Cheng Feng
Patented Case View Patent ↗ View Publication ↗
⬇ PDF
 Code Description Pages PDF
2001-01-30 TRNA Transmittal of New Application 3 View
2001-01-30 A.PE Preliminary Amendment 3 View
2001-01-30 SPEC Specification 51 View
2001-01-30 CLM Claims 3 View
2001-01-30 ABST Abstract 1 View
2001-01-30 DRW Drawings-only black and white line drawings 20 View
2001-01-30 OATH Oath or Declaration filed 3 View
2001-01-30 TRNA Transmittal of New Application 3 View
2001-01-30 A.PE Preliminary Amendment 3 View
2001-01-30 SPEC Specification 51 View
2001-01-30 CLM Claims 3 View
2001-01-30 ABST Abstract 1 View
2001-01-30 DRW Drawings-only black and white line drawings 20 View
2001-01-30 OATH Oath or Declaration filed 3 View
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Quick Facts
Patent No.
US 6,431,452
App. No.
09/772,358
Filed
2001-01-30
Granted
2002-08-13
Pub. No.
US20010003346A1
Art Unit
2876
PTA
-12 days