Education and demonstration – Science – Model or display demonstrating structure or property of atom...
Reexamination Certificate
2007-11-20
2007-11-20
Pezzuto, Robert E. (Department: 3714)
Education and demonstration
Science
Model or display demonstrating structure or property of atom...
Reexamination Certificate
active
10723650
ABSTRACT:
Disclosed is a three dimensional arrangement for the Periodic Table of the Elements that is based on an elliptical rather than rectangular arrangement represented in conventional charts. The three dimensional arrangement contains a continuous unidirectional periodic spiral of objects, the spiral having a substantially elliptical shape, and each object representing a different chemical element; the objects positioned so that chemical elements in a period are in a single spiral loop, and each successive period has a larger circumference than a preceding period; and the objects positioned so that chemical elements in a chemical group are in substantially the same vertical plane.
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Interactive Periodic Table, Jan. 1, 2003, Attica Cybernetics, pp. 1-2.
Fernando Dufour, Elemen Tree: A 3-D Periodic Table, 1999, vol. 4, Issue 3, Fresno, California.
Amin Turocy & Calvin LLP
Pezzuto Robert E.
Saadat Cameron
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