Solicitação de exame técnico
#4.1
10/17/1989
RPI 991
Application data
Number
PI8702462Type
Filing
Publication
The letters patent expired on 07/29/2008: 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: 10/17/1989. We update with every new RPI gazette, published weekly.
Applicants
Ing. Walter Hengst GmbH & Co. KG.
DE
Inventors
D. B. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
10/17/1989
RPI 991
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07/29/2008
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04/30/1991
RPI 1065
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