20.4
06/06/1989
RPI 972
Application data
Number
PI8304720Type
Filing
Publication
The letters patent expired on 07/01/2008: 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: 06/06/1989. We update with every new RPI gazette, published weekly.
Applicants
Babcock & Wilcox Fibras Cerâmicas Ltda
Morganite Isolantes Térmicos Ltda
RJ, BR
Inventors
R. M. (pessoa física)
Publications in the Brazilian Industrial Property Gazette (RPI).
06/06/1989
RPI 972
06/06/1989
RPI 972
#16.1
08/30/1988
RPI 932
#13.1
06/07/1988
RPI 920
#9.1
02/09/1988
RPI 903
#4.1
02/04/1986
RPI 798
#3.1
04/09/1985
RPI 755
#2.1
11/01/1983
RPI 680
#21.1
Patente extinta em 31/08/98
07/01/2008
RPI 1956
03/30/1993
RPI 1165
11/05/1991
RPI 1092
From the same holder
Same category
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