Carta-patente expirada
#21.1
Patente extinta em 27/09/2004
12/22/2009
RPI 2033
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Official data from INPI
CIRCUITO DE MEDIÇÃO PARA CONTROLE DAS RESISTÊNCIAS DE ISOLAMENTO DE CONDUTORES
Arquivada/ExtintaInvention Patent
Application data
Number
PI8904895Type
Invention Patent
Filing
09/27/1989
Publication
04/02/1991
Progress at the INPI
- Filing09/27/89
- Publication04/02/91
- Examination02/25/92
- Allowance10/11/94
- Grant06/27/95
- 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: 12/22/2009. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Peter Lancier Maschinenbau Hafenhuette GmbH & Co KG
DE
Inventors
H. V. (pessoa física)
DE
Technical data
IPC Classification
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Concessão da patente
#16.1
06/27/1995
RPI 1282
Notificação para pagamento de retribuição
#13.1
02/21/1995
RPI 1264
Deferimento
#9.1
10/11/1994
RPI 1245
Solicitação de exame técnico
#4.1
02/25/1992
RPI 1108
Publicação do pedido de patente
#3.1
04/02/1991
RPI 1061
Pedido de patente depositado
#2.1
03/20/1990
RPI 1010
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