Solicitação de exame técnico
#4.1
07/19/1988
RPI 926
Application data
Number
PI8406620Type
Filing
Publication
The letters patent expired on 07/08/2008: 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: 07/19/1988. We update with every new RPI gazette, published weekly.
Applicants
E. S. (pessoa física)
SP, BR
Inventors
E. S. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
07/19/1988
RPI 926
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07/01/1986
RPI 819
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03/12/1985
RPI 751
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Patente extinta em 20/12/99
07/08/2008
RPI 1957
#16.1
10/27/1992
RPI 1143
#13.1
04/21/1992
RPI 1116
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12/03/1991
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