Donald B. Hazen

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Highland City, FL, US

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Patents Grantslast 30 patents

Information Patent Grant
Swivel trailer
- Patent number 11,407,263
- Issue date Aug 9, 2022
- Donald B. Hazen
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Double-castered wheel trailer having lockable caster wheels
- Patent number 6,626,449
- Issue date Sep 30, 2003
- Donald B. Hazen
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Universal single-wheel single beam trailer having adjustable bed
- Patent number 5,368,325
- Issue date Nov 29, 1994
- Donald B. Hazen
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS

Patents Applicationslast 30 patents

Information Patent Application
Double-castered wheel trailer having lockable caster wheels
- Publication number 20020109333
- Publication date Aug 15, 2002
- Donald B. Hazen
- B60 - VEHICLES IN GENERAL