Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter
Reexamination Certificate
2007-04-03
2007-04-03
Kiliman, Leszek (Department: 1773)
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Particulate matter
C428S403000, C549S259000, CD21S486000, CD21S484000, CD21S479000
Reexamination Certificate
active
10485247
ABSTRACT:
An elongate, shaped particle having three protrusions each extending from and attached to a central position aligned along the central longitudinal axis of the particle, the cross-section of the particle occupying the area encompassed by the outer edges of six outer circles around a central circle minus the area occupied by three alternating outer circles, wherein each of the six outer circles is touching two neighbouring outer circles and wherein three alternating outer circles are equidistant to the central circle, have the same diameter, and may be attached to the central circle.
REFERENCES:
patent: 3764565 (1973-10-01), Jacobs et al.
patent: 4628001 (1986-12-01), Sasaki et al.
patent: 4975032 (1990-12-01), Arai et al.
patent: 6005121 (1999-12-01), Ebner et al.
patent: 0220933 (1987-05-01), None
patent: 4464633 (1992-01-01), None
patent: 0678331 (1995-10-01), None
patent: 1446175 (1976-08-01), None
I. Naka, et al ( J. Japan Petrol. Inst., vol. 23, No. 4, 1980, pp. 268-273), entitled: Hydrodesulphurisation Activity of Catalysts with Non-Cylindrical Shape.
International Search Reported mailed Nov. 29, 2002.
Mesters Carolus Matthias Anna Maria
Van Hasselt Bastiaan Willem
Kiliman Leszek
Miller Leonard P.
Shell Oil Company
Stewart Charles W.
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