Carta-patente expirada
#21.1
Patente extinta em 04/01/2000
07/01/2008
RPI 1956
The letters patent expired on 07/01/2008: 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: 07/01/2008. We update with every new RPI gazette, published weekly.
Applicants
Wilkhahn Wilkening + Hahne GmbH + CO
DE
Inventors
K. F. (pessoa física)
DE
W. S. (pessoa física)
DE
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 04/01/2000
07/01/2008
RPI 1956
#16.1
07/25/1995
RPI 1286
#13.1
04/04/1995
RPI 1270
11/29/1994
RPI 1252
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07/19/1994
RPI 1233
#4.1
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RPI 1189
#3.1
07/30/1991
RPI 1078
#2.1
05/08/1990
RPI 1017
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