Concessão da patente
#16.1
01/11/1983
RPI 638
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: 01/11/1983. We update with every new RPI gazette, published weekly.
Applicants
W. F. (pessoa física)
Inventors
M. M. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
01/11/1983
RPI 638
#13.1
09/21/1982
RPI 622
#9.1
06/01/1982
RPI 606
#6.1
10/20/1981
RPI 574
#21.1
07/20/1993
RPI 1181
From the same holder
Same category
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