John A. Spragge

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Port Hope, CA

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Patents Grantslast 30 patents

Information Patent Grant
Concrete structures and methods of forming the same using extenders
- Patent number 6,609,340
- Issue date Aug 26, 2003
- ECO-Block, LLC
- James Daniel Moore
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Latching system for components used in forming concrete structures
- Patent number 6,438,918
- Issue date Aug 27, 2002
- ECO-Block
- James Daniel Moore
- B28 - WORKING CEMENT, CLAY, OR STONE

Patents Applicationslast 30 patents

Information Patent Application
Concrete structures and methods of forming the same using extenders
- Publication number 20010027630
- Publication date Oct 11, 2001
- James Daniel Moore
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Application
Latching system for components used in forming concrete structures
- Publication number 20010027631
- Publication date Oct 11, 2001
- James Daniel Moore
- B28 - WORKING CEMENT, CLAY, OR STONE