18.8
11/28/1989
RPI 997
The letters patent expired on 04/18/1995: 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: 11/28/1989. We update with every new RPI gazette, published weekly.
Applicants
P. L. (pessoa física)
Inventors
C. P. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
11/28/1989
RPI 997
#18.2
10/03/1989
RPI 989
#16.1
10/25/1983
RPI 679
#13.1
09/06/1983
RPI 672
#9.1
04/19/1983
RPI 652
#6.1
04/20/1982
RPI 600
#21.1
04/18/1995
RPI 1272
From the same holder
Same category
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