Application 14/636,719 is a division of application No. 14/204,700, filed on Mar. 11, 2014, granted, now 8,967,906, issued on Mar. 3, 2015.
Application 18/369,880 is a continuation of application No. 17/229,029, filed on Apr. 13, 2021, granted, now 11,761,154, issued on Sep. 19, 2023.
Application 17/229,029 is a continuation of application No. 16/877,762, filed on May 19, 2020, granted, now 10,975,532, issued on Apr. 13, 2021.
Application 16/877,762 is a continuation of application No. 16/103,228, filed on Aug. 14, 2018, granted, now 10,655,282, issued on May 19, 2020.
Application 16/103,228 is a continuation of application No. 15/496,536, filed on Apr. 25, 2017, granted, now 10,047,484, issued on Aug. 14, 2018.
Application 15/496,536 is a continuation of application No. 15/206,987, filed on Jul. 11, 2016, granted, now 9,631,326, issued on Apr. 25, 2017.
Application 15/206,987 is a continuation of application No. 14/636,719, filed on Mar. 3, 2015, granted, now 9,394,651, issued on Jul. 19, 2016.
Application 14/204,700 is a continuation of application No. 13/741,953, filed on Jan. 15, 2013, granted, now 8,668,403, issued on Mar. 11, 2014.
Application 13/741,953 is a continuation of application No. 13/025,745, filed on Feb. 11, 2011, granted, now 8,353,640, issued on Jan. 15, 2013.
Application 13/025,745 is a continuation in part of application No. 12/830,902, filed on Jul. 6, 2010, granted, now 8,662,787, issued on Mar. 4, 2014.
Application 13/025,745 is a continuation in part of application No. 12/009,835, filed on Jan. 22, 2008, granted, now 8,236,392, issued on Aug. 7, 2012.
Claims priority of provisional application 61/303,350, filed on Feb. 11, 2010.
Claims priority of provisional application 61/297,236, filed on Jan. 21, 2010.
Claims priority of provisional application 61/239,206, filed on Sep. 2, 2009.
Claims priority of provisional application 61/228,050, filed on Jul. 23, 2009.
Claims priority of provisional application 61/223,180, filed on Jul. 6, 2009.
Claims priority of provisional application 61/003,731, filed on Nov. 20, 2007.
Claims priority of provisional application 61/000,503, filed on Oct. 26, 2007.
Claims priority of provisional application 60/927,975, filed on May 7, 2007.
Claims priority of provisional application 60/881,293, filed on Jan. 19, 2007.
Prior Publication US 2024/0003100 A1, Jan. 4, 2024
1. An impact absorption underlayment panel having a top surface, a bottom surface, and edges, a plurality of drain holes connecting the top surface in fluid communication with the bottom surface, at least one of the edges having edge projections extending therefrom, the edge projections forming a gap between the at least one edge and a mating edge of an abutting panel, the gap providing a second drainage path between the top surface and the bottom surface, wherein the panel is made of an expanded bead, polyolefin material, the expanded beads bonded together by at least one of heat or pressure, the polyolefin material providing a deflection under load, thereby imparting impact absorption to the panel.
