IP Library › Granted Patent US 6,557,220
Granted Patent Utility Small
US 6,557,220 · Confirmation No. 3815

SECURITY CLUTCH WITH SELF-CENTERING SPRING

Inventor: David H. Hamm JR.
Patented Case View Patent ↗
⬇ PDF
 Code Description Pages PDF
2002-05-31 TRNA Transmittal of New Application 8 View
2002-05-31 ADS Application Data Sheet 1 View
2002-05-31 SPEC Specification 11 View
2002-05-31 CLM Claims 4 View
2002-05-31 ABST Abstract 2 View
2002-05-31 DRW Drawings-only black and white line drawings 7 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 6,557,220
App. No.
10/063,982
Filed
2002-05-31
Granted
2003-05-06
Art Unit
3677
PTA
0 days