Solicitação de exame técnico
#4.1
10/24/1989
RPI 992
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Application data
Number
PI8705005Type
Invention Patent
Filing
09/28/1987
Publication
05/24/1988
Progress at the INPI
- Filing09/28/87
- Publication05/24/88
- Examination10/24/89
- Allowance08/24/93
- Grant04/26/94
- Expired07/29/08
The letters patent expired on 07/29/2008: 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: 10/24/1989. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
BBC Brown Boveri Ag; (BBC Brown Boveri SA; BBC Brown Boveri Ltd)
CH
Inventors
D. M. (pessoa física)
CH
M. M. (pessoa física)
CH
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Publicação do pedido de patente
#3.1
05/24/1988
RPI 918
Pedido de patente depositado
#2.1
12/29/1987
RPI 897
Carta-patente expirada
#21.1
Patente extinta em 28/09/2002
07/29/2008
RPI 1960
Concessão da patente
#16.1
04/26/1994
RPI 1221
Deferimento
#9.1
08/24/1993
RPI 1186
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