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Official data from INPI

ESTRUTURA DE ISOLAÇÃO ELÉTRICA DO CABO DE ALTA TENSÃO

Prazo de SigiloUtility Model

Application data

Number

MU6802249

Type

Utility Model

Filing

10/04/1988

Publication

06/05/1990

Progress at the INPI

  1. Filing10/04/88
  2. Publication06/05/90
  3. Examination06/16/92
  4. Allowance11/16/93
  5. Grant08/30/94
  6. Expired09/25/01

The letters patent expired on 09/25/2001: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 05/23/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

NGK Spark Plug CO Ltd

JP

See this company's full portfolio

Inventors

O. K. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

153821 · 10/07/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

05/23/1989

RPI 970

Carta-patente expirada

#21.1

Patente extinta em 04/10/98 conforme disposto no artigo 24 da Lei 5772/71 (CPI).

09/25/2001

RPI 1603

Concessão da patente

#16.1

08/30/1994

RPI 1239

Notificação para pagamento de retribuição

#13.1

03/22/1994

RPI 1216

Deferimento

#9.1

11/16/1993

RPI 1198

Solicitação de exame técnico

#4.1

06/16/1992

RPI 1124

Publicação do pedido de patente

#3.1

06/05/1990

RPI 1021

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