Carta-patente expirada
#21.1
Patente extinta em 07/06/2010
01/15/2013
RPI 2193
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Official data from INPI
PROCESSO PARA PREPARAÇÃO DE PÓ DE ÓXIDO DE NIÓBIO ( Nb2O5 ).
Arquivada/ExtintaInvention Patent
Application data
Number
PI9002693Type
Invention Patent
Filing
06/07/1990
Publication
08/20/1991
Progress at the INPI
- Filing06/07/90
- Publication08/20/91
- Examination10/05/93
- Allowance07/21/98
- Grant12/29/98
- Expired01/15/13
The letters patent expired on 01/15/2013: 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: 01/15/2013. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Hermann C. Starck Berlin GmbH & Co. Kg
DE
Inventors
E. F. (pessoa física)
DE
H. Z. (pessoa física)
DE
W. B. (pessoa física)
DE
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Concessão da patente
#16.1
12/29/1998
RPI 1460
Deferimento
#9.1
07/21/1998
RPI 1439
Exigência - art. 36 da LPI
#6.1
12/30/1997
RPI 1410
Solicitação de exame técnico
#4.1
10/05/1993
RPI 1192
Publicação do pedido de patente
#3.1
08/20/1991
RPI 1081
Pedido de patente depositado
#2.1
10/16/1990
RPI 1037
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