18.3
06/27/1989
RPI 975
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: 06/27/1989. We update with every new RPI gazette, published weekly.
Applicants
J. P. (pessoa física)
Inventors
J. P. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
06/27/1989
RPI 975
02/08/1989
RPI 955
#16.1
06/28/1983
RPI 662
#13.1
03/22/1983
RPI 648
#9.1
11/16/1982
RPI 630
#21.1
12/07/1993
RPI 1201
From the same holder
Same category
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