Douglas A Hartwell

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Vergennes, VT, US

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Patents Grantslast 30 patents

Information Patent Grant
Convertible child carrier
- Patent number 9,314,111
- Issue date Apr 19, 2016
- BityBean LLC
- Douglas A Hartwell
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...

Patents Applicationslast 30 patents

Information Patent Application
Convertible Child Carrier
- Publication number 20140084037
- Publication date Mar 27, 2014
- BityBean LLC
- Douglas A Hartwell
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...