20.4
06/16/1987
RPI 869
The patent was granted on 12/27/1983 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.
Talk to a specialistLatest action published by the INPI: 06/16/1987. We update with every new RPI gazette, published weekly.
Applicants
R. A. (pessoa física)
Inventors
F. R. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
06/16/1987
RPI 869
#16.1
12/27/1983
RPI 688
12/20/1983
RPI 687
#11.4
11/01/1983
RPI 680
#13.1
06/15/1982
RPI 608
02/16/1982
RPI 591
#12.1
11/17/1981
RPI 578
#18.2
10/23/1990
RPI 1038
From the same holder
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