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Official data from INPI

ISOLADOR DE SUSPENSÃO

Em AnáliseInvention Patent
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Application data

Number

PI8802062

Type

Invention Patent

Filing

04/28/1988

Publication

11/29/1988
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Progress at the INPI

  1. Filing04/28/88
  2. Publication11/29/88
  3. Examination11/07/89
  4. Allowance11/16/93
  5. Grant06/28/94
  6. Terminated12/31/96

The patent was granted on 06/28/1994 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 11/07/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

NGK Insulators, Ltd

JP

NGK Insulators, Ltd.

JP

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Inventors

A. W. (pessoa física)

JP

H. N. (pessoa física)

JP

M. O. (pessoa física)

JP

Technical data

IPC Classification

H01B 17/02

Priority claims

JP

105.702/87 · 04/28/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

11/07/1989

RPI 994

Publicação do pedido de patente

#3.1

11/29/1988

RPI 945

Pedido de patente depositado

#2.1

09/13/1988

RPI 934

Anuidade - prazo legal encerrado

#18.2

12/31/1996

RPI 1361

Concessão da patente

#16.1

06/28/1994

RPI 1230

Notificação para pagamento de retribuição

#13.1

03/29/1994

RPI 1217

Notificação para pagamento de retribuição

#13.1

03/22/1994

RPI 1216

Deferimento

#9.1

11/16/1993

RPI 1198

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