Carta-patente expirada
#21.1
Patente extinta em 20/12/2010
05/28/2013
RPI 2212
Application data
Number
PI9006504Type
Filing
Publication
The letters patent expired on 05/28/2013: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.
Talk to a specialistLatest action published by the INPI: 05/28/2013. We update with every new RPI gazette, published weekly.
Applicants
Celanese GmbH
DE
H. A. (pessoa física)
DE
Inventors
D. T. (pessoa física)
DE
D. D. (pessoa física)
DE
D. L. (pessoa física)
DE
H. S. (pessoa física)
DE
IPC Classification
Priority claims
DE
P 39 42 792.7 · 12/23/1989
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 20/12/2010
05/28/2013
RPI 2212
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Transferido de: Hoechst Aktiengesellschaft
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