US 12,139,920 B2
Layered apparatus and method
Katayoun Ghassemi, Nottingham, MD (US); and Christopher Paul Stogbauer, Merrill, WI (US)
Assigned to DAP Products, Inc., Baltimore, MD (US)
Appl. No. 17/442,867
Filed by DAP Products, Inc., Baltimore, MD (US)
PCT Filed May 15, 2020, PCT No. PCT/US2020/033248
§ 371(c)(1), (2) Date Sep. 24, 2021,
PCT Pub. No. WO2020/232400, PCT Pub. Date Nov. 19, 2020.
Claims priority of provisional application 62/848,312, filed on May 15, 2019.
Prior Publication US 2022/0186509 A1, Jun. 16, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B32B 7/12 (2006.01); B32B 3/26 (2006.01); B32B 7/02 (2019.01); B32B 7/022 (2019.01); B32B 7/06 (2019.01); B32B 37/26 (2006.01); E04G 23/02 (2006.01)
CPC E04G 23/0207 (2013.01) [B32B 3/26 (2013.01); B32B 7/02 (2013.01); B32B 7/022 (2019.01); B32B 7/06 (2013.01); B32B 7/12 (2013.01); B32B 37/26 (2013.01); E04G 23/0203 (2013.01); E04G 23/0214 (2013.01); B32B 2037/268 (2013.01); B32B 2250/05 (2013.01); B32B 2307/412 (2013.01); B32B 2307/558 (2013.01); B32B 2307/732 (2013.01); B32B 2556/00 (2013.01); B32B 2607/00 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A wall patch comprising:
a plurality of layers including a base layer having an upper surface and a lower surface and stacked layers stacked over the upper surface of the base layer, each of the stacked layers being stacked on one of the other layers and having an exposed lower surface region that extends laterally beyond the layer upon which it is stacked; and
adhesive configured to adhere the exposed lower surface regions and the lower surface of the base layer to a wall surface, the stacked layers being configured and arranged with the base layer and the adhesive to provide a gradient defined by the thicknesses of the layers and adhesive, and defined by the area of the exposed lower surface regions of the stacked layers.