Smoke inhalation safety device
US4402317A · kind A · utility
5Cited by
3References
8Claims
0Family size
Inventor
Key dates
| Filing date | Jul 6, 1981 |
| Grant date | Sep 6, 1983 |
| Priority date | — |
| Expiry date | Jul 6, 2001 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA41D13/11
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A porous bag filled with relatively small, loose, oil coated wood chips permits sufficient air intake and adequately prevents smoke inhalation when placed over the nose and mouth while in most smoky atmospheres.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.