20.4
10/08/1985
RPI 781
The letters patent expired on 05/02/1995: 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: 10/08/1985. We update with every new RPI gazette, published weekly.
Applicants
DEGUSSA [DE]
Inventors
K. P. (pessoa física)
L. C. (pessoa física)
S. R. (pessoa física)
W. S. (pessoa física)
Publications in the Brazilian Industrial Property Gazette (RPI).
10/08/1985
RPI 781
#16.1
12/26/1984
RPI 740
#13.1
10/23/1984
RPI 731
#9.1
06/26/1984
RPI 714
#6.1
10/18/1983
RPI 678
02/01/1983
RPI 641
#4.1
06/08/1982
RPI 607
#21.1
05/02/1995
RPI 1274
Same category
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