Publicação do pedido de patente
#3.1
04/18/1989
RPI 965
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Official data from INPI
PROCESSO PARA A REMOÇÃO DE DICROMATO DE UMA SOLUÇÃO
PublicadaInvention Patent
Application data
Number
PI8804713Type
Invention Patent
Filing
09/13/1988
Publication
04/18/1989
Progress at the INPI
- Filing09/13/88
- Publication04/18/89
- Examination05/21/91
- Allowance12/20/94
- Grant07/25/95
- Expired09/02/08
The letters patent expired on 09/02/2008: 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: 04/18/1989. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Chemetics International Company Ltd
CA
C-I-L Inc
CA
Inventors
I. W. (pessoa física)
CA
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Pedido de patente depositado
#2.1
01/31/1989
RPI 954
Carta-patente expirada
#21.1
Patente extinta em 13/09/2003
09/02/2008
RPI 1965
Concessão da patente
#16.1
07/25/1995
RPI 1286
Notificação para pagamento de retribuição
#13.1
05/02/1995
RPI 1274
Deferimento
#9.1
12/20/1994
RPI 1255
Exigência - art. 36 da LPI
#6.1
08/23/1994
RPI 1238
14.4
04/07/1992
RPI 1114
14.7
04/07/1992
RPI 1114
14.1
03/31/1992
RPI 1113
Solicitação de exame técnico
#4.1
05/21/1991
RPI 1068
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