Chemistry: molecular biology and microbiology – Apparatus – Including measuring or testing
Reexamination Certificate
2005-12-13
2005-12-13
Redding, David (Department: 1744)
Chemistry: molecular biology and microbiology
Apparatus
Including measuring or testing
C435S288400, C359S396000, C359S397000, C359S398000, C356S244000, C356S246000, C422S105000
Reexamination Certificate
active
06974692
ABSTRACT:
A quantitative cell-counting slide includes a plurality of counting chambers juxtapositionally formed in the slide; each counting chamber including a first counting portion consisting of a plurality of miniature grids of which each miniature grid may be formed to have a volume of 0.01 micro-liter for counting any kind of cells, and a second counting portion formed on a platform and consisting of a plurality of HPF (High Power Field) volumetric grids each formed to have a quantitative volume of 0.0083 micro-liter generally equal to one HPF volume adapted for cell counting used in urinary sediment microscopic examination.
REFERENCES:
patent: 5128802 (1992-07-01), Mitchell
patent: 6594077 (2003-07-01), Chiarin et al.
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