Douglas A. Dray

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Beaver Dam, WI, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of using pontoon trailer travel kit
- Patent number 6,663,130
- Issue date Dec 16, 2003
- Karavan Trailers, Inc.
- Douglas A. Dray
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Combination pontoon boat, trailer and travel kit
- Patent number 6,648,360
- Issue date Nov 18, 2003
- Karavan Trailers, Inc.
- Douglas A. Dray
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Pontoon trailer travel kit
- Patent number 6,481,737
- Issue date Nov 19, 2002
- Karavan Trailers, Inc.
- Douglas A. Dray
- B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Pontoon trailer travel kit
- Publication number 20020089146
- Publication date Jul 11, 2002
- Douglas A. Dray
- B60 - VEHICLES IN GENERAL