Reusable notebook
US9844965B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 8, 2016 |
| Grant date | Dec 19, 2017 |
| Priority date | — |
| Expiry date | Oct 8, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB43L1/00
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A reusable notebook is used with heat-erasable ink. The reusable notebook includes a binding configured to hold a plurality of pages, at least one cover, and at least one ready indicator. The ready indicator is configured to indicate that at least one page in the notebook has reached at least a critical temperature. The critical temperature is a predetermined minimum temperature that is sufficient to erase thermochromic ink on the page(s). The indication occurs when the ready indicator is at a temperature equal to or above a predetermined minimum temperature referred to as the ready temperature. When the ready indicator is at or above the ready temperature, the critical temperature of the at least one page is reached.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.