Carta-patente expirada
#21.1
Patente extinta em 07/12/2009
05/21/2013
RPI 2211
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Official data from INPI
PROCESSO PARA A PREPARAÇÃO DE ORGANOCLOROSSILANOS
Arquivada/ExtintaInvention Patent
Application data
Number
PI8906327Type
Invention Patent
Filing
12/07/1989
Publication
08/21/1990
Progress at the INPI
- Filing12/07/89
- Publication08/21/90
- Examination02/02/93
- Allowance10/01/96
- Grant08/26/97
- Expired05/21/13
The letters patent expired on 05/21/2013: 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: 05/21/2013. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
B. A. (pessoa física)
DE
GE Bayer Silicones GmbH & CO. KG
DE
Inventors
D. D. (pessoa física)
DE
D. W. (pessoa física)
DE
D. F. (pessoa física)
DE
D. S. (pessoa física)
DE
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Transferência deferida
#25.1
Transferido de: Bayer Aktiengesellschaft
10/24/2000
RPI 1555
Concessão da patente
#16.1
08/26/1997
RPI 1395
Deferimento
#9.1
10/01/1996
RPI 1348
Solicitação de exame técnico
#4.1
02/02/1993
RPI 1157
Publicação do pedido de patente
#3.1
08/21/1990
RPI 1029
Pedido de patente depositado
#2.1
03/20/1990
RPI 1010
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