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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Manthei; Jeremy L.
Address:
Charlevoix, MI
No. of patents:
14
Patents:












Patent Number Title Of Patent Date Issued
D589631 Concrete block simulating natural stone March 31, 2009
D589169 Concrete block simulating natural stone March 24, 2009
D589168 Concrete block simulating natural stone March 24, 2009
D589167 Concrete block simulating natural stone March 24, 2009
D589166 Concrete block simulating natural stone March 24, 2009
D589165 Concrete block simulating natural stone March 24, 2009
D589164 Concrete block simulating natural stone March 24, 2009
D589163 Concrete block simulating natural stone March 24, 2009
D589162 Concrete block simulating natural stone March 24, 2009
D589161 Concrete block simulating natural stone March 24, 2009
D589160 Concrete block simulating natural stone March 24, 2009
D589159 Concrete block simulating natural stone March 24, 2009
7687006 Form for casting concrete blocks and other objects March 30, 2010
A form for casting concrete blocks and other products having a resilient insert defining a cavity in which the block is cast and a rigid support or frame for the resilient insert. After the block has cured, the block is removed from the insert either by inverting the form to allow the
7618578 Method and apparatus for forming concrete blocks November 17, 2009
A method and apparatus for forming a concrete block in form having a resilient insert forming a cavity in which the block is cast and a rigid support for the resilient insert. After the block has cured, the form is inverted. One or more areas of the insert are tethered to the support so










 
 
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