US 12,344,026 B2
Moisture-erasable note taking system
Joseph Lemay, Marblehead, MA (US); and Jacob Epstein, Concord, MA (US)
Assigned to Rocket Innovations, Inc., Boston, MA (US)
Filed by Rocket Innovations, Inc., Boston, MA (US)
Filed on Jan. 17, 2024, as Appl. No. 18/415,354.
Application 18/415,354 is a continuation of application No. 18/075,062, filed on Dec. 5, 2022, granted, now 11,884,094.
Application 18/075,062 is a continuation of application No. 16/876,717, filed on May 18, 2020, granted, now 11,541,683, issued on Jan. 3, 2023.
Application 16/876,717 is a continuation of application No. 16/839,839, filed on Apr. 3, 2020, granted, now 11,001,094, issued on May 11, 2021.
Application 16/839,839 is a continuation of application No. 16/354,711, filed on Mar. 15, 2019, granted, now 10,618,345, issued on Apr. 14, 2020.
Application 16/354,711 is a continuation of application No. 15/811,360, filed on Nov. 13, 2017, granted, now 10,232,663, issued on Mar. 19, 2019.
Claims priority of provisional application 62/421,335, filed on Nov. 13, 2016.
Prior Publication US 2024/0227429 A1, Jul. 11, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. B43L 1/00 (2006.01); B42D 1/00 (2006.01)
CPC B43L 1/00 (2013.01) [B42D 1/008 (2013.01); B42P 2241/18 (2013.01); B42P 2241/26 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method of reusing a notebook comprising: providing:
a notebook having at least one synthetic-paper page,
wherein the at least one synthetic-paper page comprises a base layer and an ink receptive layer which is waterproof,
a thermochromic ink pen which, when used to write on the at least one synthetic-paper page, leaves thermochromic ink markings;
wherein the thermochromic ink pen comprises a thermochromic ink comprising:
microcapsules including a leuco dye that can change between colored and colorless forms, and
water as a solvent, and
wherein the size of the microcapsules is larger than the pore size of the synthetic paper, and
a moisture carrier configured to have water diffused therein, the moisture carrier further configured to erase the thermochromic ink markings from the at least one synthetic-paper page by contacting the thermochromic ink markings when it is moist;
writing with thermochromic ink on at least a portion of the at least one synthetic-paper page; and
wiping the portion of the at least one synthetic-paper page having the thermochromic ink with the moist moisture carrier in which water is diffused such that the thermochromic ink is erased from the at least one synthetic-paper page.