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Official data from INPI

PROCESSO PARA FORJAR UMA TAMPA DE METAL DE UM ISOLADOR DO TIPO ESFERA-SOQUETE

Em AnáliseInvention Patent

Application data

Number

PI8601346

Type

Invention Patent

Filing

03/26/1986

Publication

12/02/1986

Progress at the INPI

  1. Filing03/26/86
  2. Publication12/02/86
  3. Examination06/16/87
  4. Allowance01/02/96
  5. Grant09/24/96
  6. Expired07/22/08

The letters patent expired on 07/22/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 06/16/1987. 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. M. (pessoa física)

JP

I. Y. (pessoa física)

JP

N. T. (pessoa física)

JP

Y. N. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

62.282/85 · 03/27/1985

JP

62.283/85 · 03/27/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

06/16/1987

RPI 869

Publicação do pedido de patente

#3.1

12/02/1986

RPI 841

Pedido de patente depositado

#2.1

10/21/1986

RPI 835

Carta-patente expirada

#21.1

Patente extinta em 26/03/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

09/24/1996

RPI 1347

Deferimento

#9.1

01/02/1996

RPI 1309

Conhecimento de parecer técnico

#7.1

08/03/1993

RPI 1183

6.2

11/12/1991

RPI 1093

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