Carta-patente expirada
#21.1
11/08/1988
RPI 942
The letters patent expired on 11/08/1988: 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: 11/08/1988. We update with every new RPI gazette, published weekly.
Applicants
METALURG DETROIT SA
Inventors
P. A. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
11/08/1988
RPI 942
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11/27/1984
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RPI 724
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RPI 652
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08/24/1982
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12/22/1981
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