20.7
10/06/1987
RPI 885
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: 10/06/1987. 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).
10/06/1987
RPI 885
#16.1
02/04/1986
RPI 798
#13.1
11/12/1985
RPI 786
#9.1
07/09/1985
RPI 768
06/11/1985
RPI 764
04/09/1985
RPI 755
#7.1
07/12/1983
RPI 664
#5.1
05/18/1982
RPI 604
#4.1
12/08/1981
RPI 581
#21.1
12/07/1993
RPI 1201
From the same holder
Same category
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