Defensive writing instrument
US9108454B1 · kind B1 · utility
11Cited by
10References
13Claims
0Family size
Inventor
Key dates
| Filing date | Jun 10, 2008 |
| Grant date | Aug 18, 2015 |
| Priority date | — |
| Expiry date | Jul 30, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB43K29/10
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A writing instrument includes a glass break on the end opposite the writing tip. Means for securing a cap over either the writing tip or the glass break are provided. The body of the writing instruments may include circumferential ridges or channels. Some examples of the writing instrument may include a cover removably secured over the glass break, possibly with a key ring attached. The cap may include a light source or laser pointer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.