18.8
03/01/1988
RPI 906
The letters patent expired on 07/20/1993: 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: 03/01/1988. We update with every new RPI gazette, published weekly.
Applicants
P. M. (pessoa física)
Inventors
A. C. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
03/01/1988
RPI 906
#18.2
12/15/1987
RPI 895
#22.1
05/27/1986
RPI 814
#16.1
01/31/1984
RPI 693
#13.1
11/08/1983
RPI 681
#9.1
07/12/1983
RPI 664
#6.1
08/03/1982
RPI 615
01/19/1982
RPI 587
#21.1
07/20/1993
RPI 1181
From the same holder
Same category
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