16.3
04/17/1984
RPI 704
The letters patent expired on 11/30/1993: 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: 04/17/1984. We update with every new RPI gazette, published weekly.
Applicants
D. B. (pessoa física)
Inventors
B. P. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
04/17/1984
RPI 704
#16.1
01/31/1984
RPI 693
#13.1
11/08/1983
RPI 681
#9.1
07/12/1983
RPI 664
#6.1
08/10/1982
RPI 616
01/19/1982
RPI 587
#21.1
11/30/1993
RPI 1200
Same category
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