Chemistry: analytical and immunological testing – Nitrogen containing – Cyanide or isocyanide
Reexamination Certificate
2007-12-04
2010-02-16
Griffin, Walter D (Department: 1797)
Chemistry: analytical and immunological testing
Nitrogen containing
Cyanide or isocyanide
C436S106000, C422S083000, C422S050000
Reexamination Certificate
active
07662635
ABSTRACT:
A device and method in which the gas specimen to be investigated is exposed to one or more indicators for qualitative or quantitative detection of methylisothiocyanate, characterized in that at least one indicator is palladium sulfate.
REFERENCES:
patent: 5000920 (1991-03-01), Heckmann et al.
patent: 285 196 (1990-12-01), None
M.G. Ashley et al.; “The Action of Metham-sodium in Soil. I.-Development of an Analytical Method for the Determination of Methyl Isothiocyanate Residues in Soil”, Journal of the Science of Food and Agriculture, 1963, vol. 14, Issue 3, pp. 148-153.
G.A. Lloyd: “The Elimination of Methyl Isothiocyanate From Soil After Treatment With Metham-sodium”, Journal of the Science of Food and Agriculture, 1962, vol. 13, Issue 6, pp. 309-315.
German Office Action dated Apr. 8, 2008 issued in counterpart German Application 10 2006 058 459.7-52.
Guga Silke
Mohrmann Andreas
Dräger Safety AG & Co. KGaA
Griffin Walter D
Mui Christine T
Nixon & Vanderhye P.C.
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