Stock material or miscellaneous articles – Composite – Of silicon containing
Reexamination Certificate
2011-06-28
2011-06-28
Kiliman, Leszek (Department: 1788)
Stock material or miscellaneous articles
Composite
Of silicon containing
C428S447000, C524S588000, C528S039000
Reexamination Certificate
active
07968202
ABSTRACT:
The present invention relates to a sealed natural cut stone, the pores of which are permeable to water vapor but are impermeable to aqueous liquids, and a method for the production thereof and the use of such natural cut stones.
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Armoneit Hannelore
Banken Sigrid
Berendes Eckart
Hennige Volker
Herkt-Bruns Christian
Evonik Degussa GmbH
Kiliman Leszek
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
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