18.1
09/29/1987
RPI 884
The letters patent expired on 04/25/1995: 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: 09/29/1987. We update with every new RPI gazette, published weekly.
Applicants
A. P. (pessoa física)
SP, BR
Inventors
P. A. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
09/29/1987
RPI 884
#16.1
05/31/1983
RPI 658
#13.1
02/01/1983
RPI 641
#9.1
09/28/1982
RPI 623
#6.1
04/27/1982
RPI 601
#21.1
04/25/1995
RPI 1273
07/31/1990
RPI 1026
From the same holder
Same category
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