Pedido de certificado de adição de invenção
#5.1
10/18/1988
RPI 939
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Application data
Number
PI8507115Type
Invention Patent
Filing
09/23/1985
Publication
03/31/1987
Progress at the INPI
- Filing09/23/85
- Publication03/31/87
- Examination07/05/88
- Allowance05/25/93
- Grant02/16/94
- Expired07/15/08
The letters patent expired on 07/15/2008: 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: 10/18/1988. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
T. C. (pessoa física)
US
Inventors
R. J. (pessoa física)
US
W. W. (pessoa física)
US
Technical data
IPC Classification
Priority claims
US
678.731 · 12/06/1984
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Solicitação de exame técnico
#4.1
07/05/1988
RPI 924
Notificação de entrada na fase nacional - PCT
#1.3
03/31/1987
RPI 858
Carta-patente expirada
#21.1
Patente extinta em 23/09/2000
07/15/2008
RPI 1958
Concessão da patente
#16.1
02/16/1994
RPI 1211
Notificação para pagamento de retribuição
#13.1
10/05/1993
RPI 1192
Deferimento
#9.1
05/25/1993
RPI 1173
Exigência - art. 36 da LPI
#6.1
09/29/1992
RPI 1139
Conhecimento de parecer técnico
#7.1
12/10/1991
RPI 1097
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