Publicação do pedido de patente
#3.1
11/21/1989
RPI 996
Application data
Number
PI8901560Type
Filing
Publication
The letters patent expired on 12/15/2009: 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: 11/21/1989. We update with every new RPI gazette, published weekly.
Applicants
Rohm And Haas Company
US
Shell Internationale Research Maatschappij B.V
NL
Inventors
L. N. (pessoa física)
US
R. J. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
11/21/1989
RPI 996
#2.1
05/16/1989
RPI 969
#21.1
Patente extinta em 03/04/2004
12/15/2009
RPI 2032
#16.1
09/26/1995
RPI 1295
#9.1
03/14/1995
RPI 1267
02/16/1993
RPI 1159
#4.1
11/19/1991
RPI 1094
From the same holder
Same category
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