US 11,766,117 B2
Molded plastic structures
Mitch Johnson, South Weber, UT (US); and Wendell Peery, Kaysville, UT (US)
Assigned to LIFETIME PRODUCTS, INC., Clearfield, UT (US)
Filed by LIFETIME PRODUCTS, INC., Clearfield, UT (US)
Filed on May 9, 2022, as Appl. No. 17/662,613.
Application 17/662,613 is a continuation of application No. 16/192,581, filed on Nov. 15, 2018, granted, now 11,324,311, issued on May 10, 2022.
Claims priority of provisional application 62/682,668, filed on Jun. 8, 2018.
Claims priority of provisional application 62/588,812, filed on Nov. 20, 2017.
Prior Publication US 2022/0257004 A1, Aug. 18, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A47B 13/08 (2006.01); A47B 3/091 (2006.01); B29C 49/00 (2006.01); B29L 31/44 (2006.01); B29C 49/48 (2006.01)
CPC A47B 13/08 (2013.01) [A47B 3/0912 (2013.01); B29C 49/0031 (2013.01); A47B 2200/001 (2013.01); B29C 49/4812 (2022.05); B29K 2995/0077 (2013.01); B29K 2995/0082 (2013.01); B29L 2031/448 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A blow-molded plastic structure constructed using a blow-molding process, the blow-molded plastic structure comprising:
a panel including a first surface, a second surface, and a hollow interior portion disposed between the first surface and the second surface;
a lip extending outwardly from the panel, the lip including an outer surface and an inner surface;
a pair of curved risers extending inwardly from the inner surface of the lip, each riser of the pair of curved risers including a first portion connected to the panel and a second portion connected to the inner surface of the lip; and
an elongated tack-off extending between the pair of curved risers, the elongated tack-off including a first end disposed at least proximate a first riser of the pair of curved risers and a second end disposed at least proximate a second riser of the pair of curved risers, the elongated tack-off having a length at least three times greater than a height of a riser of the pair of curved risers.