20.7
02/18/1986
RPI 800
The letters patent expired on 04/18/1995: 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: 02/18/1986. We update with every new RPI gazette, published weekly.
Applicants
S. T. (pessoa física)
Inventors
T. A. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
02/18/1986
RPI 800
#16.1
03/27/1984
RPI 701
#13.1
02/07/1984
RPI 694
#9.1
10/25/1983
RPI 679
#6.1
03/01/1983
RPI 645
#4.1
07/13/1982
RPI 612
#21.1
04/18/1995
RPI 1272
Same category
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