Solicitação de exame técnico
#4.1
10/31/1989
RPI 993
Application data
Number
PI8700538Type
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: 10/31/1989. We update with every new RPI gazette, published weekly.
Applicants
Universidade Estadual de Campinas - Unicamp
SP, BR
Inventors
O. N. (pessoa física)
BR
S. Z. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
10/31/1989
RPI 993
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08/16/1988
RPI 930
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06/09/1987
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Patente extinta em 06/02/2002
07/29/2008
RPI 1960
#16.1
07/27/1993
RPI 1182
#15.11
06/01/1993
RPI 1174
#13.1
04/20/1993
RPI 1168
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12/01/1992
RPI 1148
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