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Official data from INPI

ISOLADOR DE SUSPENSÃO.

Em AnáliseInvention Patent

Application data

Number

PI8702130

Type

Invention Patent

Filing

04/30/1987

Publication

02/09/1988

Progress at the INPI

  1. Filing04/30/87
  2. Publication02/09/88
  3. Examination10/11/88
  4. Allowance12/08/92
  5. Grant06/29/93
  6. Terminated12/31/96

The patent was granted on 06/29/1993 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 10/11/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

NGK Insulators, Ltd.

JP

See this company's full portfolio

Inventors

H. S. (pessoa física)

JP

T. M. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

118.316/86 · 05/22/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

10/11/1988

RPI 938

Publicação do pedido de patente

#3.1

02/09/1988

RPI 903

Anuidade - prazo legal encerrado

#18.2

12/31/1996

RPI 1361

Concessão da patente

#16.1

06/29/1993

RPI 1178

Notificação para pagamento de retribuição

#13.1

04/20/1993

RPI 1168

Deferimento

#9.1

12/08/1992

RPI 1149

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