Carta-patente expirada
#21.1
Patente extinta em 04/10/2010
05/21/2013
RPI 2211
Application data
Number
PI9004967Type
Filing
Publication
The letters patent expired on 05/21/2013: 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: 05/21/2013. We update with every new RPI gazette, published weekly.
Applicants
D. A. (pessoa física)
DE
Degussa - Hüls Aktiengesellschaft
DE
Houghton Durferrit GmbH
DE
H. A. (pessoa física)
DE
Inventors
G. W. (pessoa física)
DE
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 04/10/2010
05/21/2013
RPI 2211
#25.1
Transferido de: Degussa-Hüls Aktiengesellschaft.
08/22/2000
RPI 1546
#25.4
Alterado de: Hüls Aktiengesellschaft
07/18/2000
RPI 1541
#25.1
Transferido de: Degussa Aktiengesellschaft
06/20/2000
RPI 1537
#16.1
12/29/1998
RPI 1460
#9.1
09/15/1998
RPI 1447
#6.1
05/26/1998
RPI 1431
#4.1
12/01/1992
RPI 1148
#3.1
09/10/1991
RPI 1084
#2.1
04/02/1991
RPI 1061
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Same category
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