20.7
10/08/1985
RPI 781
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: 10/08/1985. We update with every new RPI gazette, published weekly.
Applicants
S. M. (pessoa física)
Inventors
S. M. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
10/08/1985
RPI 781
#20.1
02/07/1984
RPI 694
#16.1
07/27/1982
RPI 614
#13.1
02/02/1982
RPI 589
10/20/1981
RPI 574
#21.1
12/07/1993
RPI 1201
From the same holder
Same category
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