Solicitação de exame técnico
#4.1
07/22/1986
RPI 822
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Official data from INPI
APERFEIÇOAMENTO EM AQUECEDOR ELÉTRICO INDUTIVO, DE BOBINAS OVAIS, COM O FECHAMENTO DE CURTO CIRCUITO NOS FLANGES DE ENTRADA E SAÍDA
Em AnáliseInvention Patent
Application data
Number
PI8506299Type
Invention Patent
Filing
12/16/1985
Publication
03/18/1986
Progress at the INPI
- Filing12/16/85
- Publication03/18/86
- Examination07/22/86
- Allowance01/02/91
- Grant09/24/91
- Expired07/15/08
The letters patent expired on 07/15/2008: 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: 07/22/1986. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
COELMA Construçoes Eletricas Ltda.
SP, BR
Inventors
M. G. (pessoa física)
BR
Technical data
IPC Classification
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Publicação antecipada
#3.2
03/18/1986
RPI 804
Carta-patente expirada
#21.1
Patente extinta em 16/12/2000
07/15/2008
RPI 1958
201
06/15/1993
RPI 1176
Pedido de licença voluntária
#17.1
10/13/1992
RPI 1141
Concessão da patente
#16.1
09/24/1991
RPI 1086
Notificação para pagamento de retribuição
#13.1
04/16/1991
RPI 1063
Deferimento
#9.1
01/02/1991
RPI 1048
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