22.2
11/10/1987
RPI 890
The letters patent expired on 11/14/1995: 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: 11/10/1987. We update with every new RPI gazette, published weekly.
Applicants
Wolff Walsrode AG
DE
Inventors
E. G. (pessoa física)
R. H. (pessoa física)
S. I. (pessoa física)
IPC Classification
Priority claims
DE
P 29 41 909.8 · 10/17/1979
Publications in the Brazilian Industrial Property Gazette (RPI).
11/10/1987
RPI 890
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RPI 784
#16.1
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07/30/1985
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04/09/1985
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#6.1
07/17/1984
RPI 717
01/11/1983
RPI 638
#4.1
07/13/1982
RPI 612
#21.1
11/14/1995
RPI 1302
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