Concessão da patente
#16.1
09/29/1987
RPI 884
The letters patent expired on 12/07/1993: 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: 09/29/1987. We update with every new RPI gazette, published weekly.
Applicants
S. D. (pessoa física)
Inventors
E. B. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
09/29/1987
RPI 884
#13.1
03/17/1987
RPI 856
01/21/1987
RPI 848
10/07/1986
RPI 833
03/18/1986
RPI 804
#12.2
01/08/1985
RPI 742
#9.2
10/02/1984
RPI 728
#15.11
02/14/1984
RPI 695
#7.1
12/20/1983
RPI 687
#4.1
02/24/1982
RPI 592
#21.1
12/07/1993
RPI 1201
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Same category
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