20.4
07/28/1987
RPI 875
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: 07/28/1987. We update with every new RPI gazette, published weekly.
Applicants
KOLB GMBH & CO HANS
Inventors
B. W. (pessoa física)
V. R. (pessoa física)
Z. L. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
07/28/1987
RPI 875
#16.1
07/26/1983
RPI 666
#13.1
05/24/1983
RPI 657
#9.1
01/11/1983
RPI 638
#9.1
07/13/1982
RPI 612
01/05/1982
RPI 585
#21.1
11/30/1993
RPI 1200
From the same holder
Same category
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