Patent ID: 9376826
Filing Date: 2016-06-28
CPC Classification: E02D,E04C,E04G

Claim Text:
1. A concrete form, comprising: a sleeve having a top portion with a top edge and a bottom portion with a bottom edge generally parallel to the top edge, the bottom portion including a plurality of bottom severance lines extending from the bottom edge to the top portion, and the top portion including a plurality of top creases extending from the top edge to the bottom portion, wherein the top creases are generally perpendicular to the top and bottom edges; wherein the top creases at least partially define a plurality of top panels around a periphery of the sleeve, and the bottom severance lines at least partially define a plurality of bottom panels configured to flare out when concrete is poured into the sleeve, and wherein the sleeve is formed using two or more solid fiber, liner boards adhered together using a water resistant glue.