Fumigant system
US4889708A · kind A · utility
13Cited by
13References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1989 |
| Grant date | Dec 26, 1989 |
| Priority date | — |
| Expiry date | Feb 22, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA23B9/18
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
A fumigant composition comprising a pressurized mixture of a diluent gas and phosphine in predetermined proportions within a container adapted for release of gaseous fumigant. A method of preparing the composition comprises the steps of pumping a predetermined quantity of phosphine under pressure into the container and filling the container with a liquified diluent gas. A method of fumigating a substantially closed space by liberating the composition is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.