Pedido de patente depositado
#2.1
10/03/1989
RPI 989
Application data
Number
PI8903639Type
Filing
Publication
The letters patent expired on 12/26/2012: 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: 10/03/1989. We update with every new RPI gazette, published weekly.
Applicants
Degussa - Huels Aktiengesellschaft
DE
H. A. (pessoa física)
DE
Inventors
D. S. (pessoa física)
DE
D. N. (pessoa física)
DE
D. N. (pessoa física)
DE
D. W. (pessoa física)
DE
D. D. (pessoa física)
DE
Publications in the Brazilian Industrial Property Gazette (RPI).
#2.1
10/03/1989
RPI 989
#21.1
Patente extinta em 21/07/2009
12/26/2012
RPI 2190
#25.1
Transferido de: Hüls Aktiengesellschaft
06/19/2001
RPI 1589
#16.1
01/21/1998
RPI 1413
#13.1
05/13/1997
RPI 1380
#15.11
02/12/1997
RPI 1367
#9.1
02/12/1997
RPI 1367
#6.1
02/27/1996
RPI 1317
#4.1
09/10/1991
RPI 1084
#3.1
03/13/1990
RPI 1009
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