20.7
03/25/1986
RPI 805
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: 03/25/1986. 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).
03/25/1986
RPI 805
#16.1
07/30/1985
RPI 771
#13.1
03/26/1985
RPI 753
02/05/1985
RPI 746
#9.1
11/13/1984
RPI 734
#6.1
04/03/1984
RPI 702
#7.1
09/06/1983
RPI 672
#5.1
08/03/1982
RPI 615
#4.1
02/16/1982
RPI 591
#21.1
12/07/1993
RPI 1201
10/16/1990
RPI 1037
From the same holder
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