Pedido de patente depositado
#2.1
10/24/1989
RPI 992
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Official data from INPI
DUTOS PARA SISTEMAS DE DISTRIBUIÇÃO DE AR E/OU VENTILAÇÃO
Prazo de SigiloInvention Patent
Application data
Number
PI8904121Type
Invention Patent
Filing
08/16/1989
Publication
04/17/1990
Progress at the INPI
- Filing08/16/89
- Publication04/17/90
- Examination09/11/90
- Allowance06/29/93
- Grant05/31/94
- Expired12/22/09
The letters patent expired on 12/22/2009: 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
Ventiladores Bernauer S/A
SP, BR
Inventors
E. B. (pessoa física)
BR
Technical data
IPC Classification
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Carta-patente expirada
#21.1
Patente extinta em 16/08/2004
12/22/2009
RPI 2033
Concessão da patente
#16.1
05/31/1994
RPI 1226
Notificação para pagamento de retribuição
#13.1
11/16/1993
RPI 1198
Deferimento
#9.1
06/29/1993
RPI 1178
Exigência - art. 36 da LPI
#6.1
11/17/1992
RPI 1146
Exigência - art. 36 da LPI
#6.1
05/12/1992
RPI 1119
Solicitação de exame técnico
#4.1
09/11/1990
RPI 1032
Publicação antecipada
#3.2
04/17/1990
RPI 1014
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