20.7
08/07/1984
RPI 720
The letters patent expired on 07/27/1993: 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: 08/07/1984. We update with every new RPI gazette, published weekly.
Applicants
M. C. (pessoa física)
Inventors
M. C. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
08/07/1984
RPI 720
#16.1
02/22/1983
RPI 644
#13.1
11/30/1982
RPI 632
#9.1
07/13/1982
RPI 612
03/09/1982
RPI 594
#21.1
07/27/1993
RPI 1182
From the same holder
Same category
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