US 12,257,773 B2
3D printed object having overcure region
Mehdi Mojdeh, Fremont, CA (US); Brett E. Kelly, Oakland, CA (US); and Shiva P. Sambu, Milpitas, CA (US)
Assigned to Align Technology, Inc., San Jose, CA (US)
Filed by Align Technology, Inc., San Jose, CA (US)
Filed on Oct. 3, 2022, as Appl. No. 17/959,295.
Application 17/959,295 is a division of application No. 16/837,978, filed on Apr. 1, 2020, granted, now 11,511,485.
Claims priority of provisional application 62/828,163, filed on Apr. 2, 2019.
Prior Publication US 2023/0023773 A1, Jan. 26, 2023
Int. Cl. B29C 64/188 (2017.01); B29C 64/245 (2017.01); B29C 64/35 (2017.01); B29C 64/393 (2017.01); B29C 64/40 (2017.01); B29C 71/04 (2006.01); B29L 31/00 (2006.01); B33Y 10/00 (2015.01); B33Y 40/20 (2020.01); B33Y 50/02 (2015.01); B33Y 80/00 (2015.01)
CPC B29C 64/188 (2017.08) [B29C 64/245 (2017.08); B29C 64/35 (2017.08); B29C 64/393 (2017.08); B29C 64/40 (2017.08); B29C 71/04 (2013.01); B29L 2031/753 (2013.01); B33Y 10/00 (2014.12); B33Y 40/20 (2020.01); B33Y 50/02 (2014.12); B33Y 80/00 (2014.12)] 19 Claims
OG exemplary drawing
 
1. A three-dimensional (3D) object comprising:
a plurality of layers representative of an additive manufacturing process, wherein each layer of the plurality of layers approximately has a first thickness;
a first layer of the plurality of layers that forms at least a portion of a first surface of the 3D object, the first layer comprising a support region and an overcure region, wherein the first layer approximately has the first thickness at the support region and a greater second thickness at the overcure region; and
a support mark at the support region, wherein the support mark is inset from a first surface profile of the 3D object defined by the overcure region;
wherein the 3D object comprises a positive mold of a dental arch of a patient, and wherein the overcure region provides a flat bottom surface for the positive mold of the dental arch that is unaffected by the support mark.