Carta-patente expirada
#21.1
Patente extinta em 28/12/2010
05/28/2013
RPI 2212
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Official data from INPI
PROCESSO PARA PREPARAÇÃO DE TANINO INSOLÚVEL, PROCESSO PARA TRATAMENTO DE RESÍDUOS USANDO TANINO INSOLÚVEL, E PROCESSO DE ADSORÇÃO QUE USA TANINO
Arquivada/ExtintaInvention Patent
Application data
Number
PI9006664Type
Invention Patent
Filing
12/28/1990
Publication
10/01/1991
Progress at the INPI
- Filing12/28/90
- Publication10/01/91
- Examination09/14/93
- Allowance08/17/99
- Grant02/22/00
- Expired05/28/13
The letters patent expired on 05/28/2013: 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: 05/28/2013. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Mitsubishi Nuclear Fuel Co.
JP
Inventors
W. S. (pessoa física)
JP
Y. M. (pessoa física)
JP
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Concessão da patente
#16.1
02/22/2000
RPI 1520
Deferimento
#9.1
08/17/1999
RPI 1493
Exigência - art. 36 da LPI
#6.1
09/29/1998
RPI 1449
Solicitação de exame técnico
#4.1
09/14/1993
RPI 1189
Publicação do pedido de patente
#3.1
10/01/1991
RPI 1087
Pedido de patente depositado
#2.1
06/25/1991
RPI 1073
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