Cessão de direito de exploração
#22.1
07/14/1987
RPI 873
The letters patent expired on 05/31/1994: 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: 07/14/1987. We update with every new RPI gazette, published weekly.
Applicants
S. D. (pessoa física)
Inventors
E. B. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#22.1
07/14/1987
RPI 873
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08/28/1984
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05/02/1984
RPI 706
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01/24/1984
RPI 692
10/11/1983
RPI 677
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03/01/1983
RPI 645
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05/31/1994
RPI 1226
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