Harold Duffy

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Inyokern, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Theft defeating improvements for shopping carts
- Patent number 7,445,215
- Issue date Nov 4, 2008
- Mind Wurx, LLC
- James G. Prather
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Grant
Shopping cart with improved theft disabling device
- Patent number 6,271,755
- Issue date Aug 7, 2001
- James G. Prather
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Grant
Shopping cart with theft disabling device
- Patent number 6,054,923
- Issue date Apr 25, 2000
- Mind Quirx, LLC
- James G. Prather
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS

Patents Applicationslast 30 patents

Information Patent Application
Theft defeating improvements for shopping carts
- Publication number 20040051263
- Publication date Mar 18, 2004
- James G. Prather
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS