Patent · US Active

Classifying kits

US8113355B1 · kind B1 · utility

15Cited by
9References
17Claims
0Family size

Inventor

Key dates

Filing dateMay 3, 2011
Grant dateFeb 14, 2012
Priority date—
Expiry dateMay 3, 2031

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB07B1/06
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

Classifying kits useful in separating gold, other precious metals, gems, collectable rocks, fossils, and archaeological artifacts from earth material. Classifying sieves and other parts of the classifying kits herein are configured to be used within a bucket and can readily be removable therefrom. Depending on the parts used and the goals of a user, the kits herein can be used with dry sifting methods or with water.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.