Douglas K. Blair

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Toronto, Ontario, CA

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Patents Grantslast 30 patents

Information Patent Grant
Vacuum insulated coffee server
- Patent number 6,505,752
- Issue date Jan 14, 2003
- Patrick J. Rolfes
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Insulated beverage carafe with volume indicator
- Patent number 6,301,961
- Issue date Oct 16, 2001
- Patrick J. Rolfes
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Vacuum insulated coffee server with sight gauge
- Patent number D438420
- Issue date Mar 6, 2001
- Patrick J. Rolfes
- D07 - Equipment for preparing or serving food or drink not elsewhere specified