Concessão da patente
#16.1
06/30/1987
RPI 871
Application data
Number
PI8205491Type
Filing
Publication
The letters patent expired on 08/19/2008: 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: 06/30/1987. We update with every new RPI gazette, published weekly.
Applicants
RUETGERSWERKE AG [DE]
Inventors
B. K. (pessoa física)
R. K. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
06/30/1987
RPI 871
#13.1
03/04/1987
RPI 854
#9.1
09/30/1986
RPI 832
#4.1
08/13/1985
RPI 773
05/14/1985
RPI 760
#3.1
08/23/1983
RPI 670
#2.1
11/09/1982
RPI 629
#21.1
Patente extinta em 20/09/97
08/19/2008
RPI 1963
From the same holder
Same category
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