U.S. federal trademark · Serial No. 85432907 · Reg. No. 4197215
Interlocking reinforced concrete components, namely, reinforced, engineered, and dry mixed concrete blocks formed as either a header piece 5' x 8" x 4" weighing 135 lbs, a front stretcher 5' by 6" by 4" weighing 125 pounds, a back stretcher 3' 9" by 6" by 4" weighing 95 pounds, or a false header 9.5" by 8" by 4" weighing 30 pounds for building bulk gravity crib retaining walls in the nature of an open faced concrete bulk gravity retaining wall in an open grid pattern that permits planting in the exposed earth face between the concrete sides
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.