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Official data from INPI

APARELHO ELÉTRICO CONTENDO ÓLEO ISOLANTE

Em AnáliseInvention Patent

Application data

Number

PI8705937

Type

Invention Patent

Filing

11/04/1987

Publication

06/14/1988

Progress at the INPI

  1. Filing11/04/87
  2. Publication06/14/88
  3. Examination10/04/88
  4. Allowance03/24/98
  5. Grant10/27/98
  6. Expired12/11/12

The letters patent expired on 12/11/2012: 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: 10/04/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. K. (pessoa física)

JP

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Inventors

M. T. (pessoa física)

JP

T. M. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

263141/1986 · 11/05/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

10/04/1988

RPI 937

Publicação do pedido de patente

#3.1

06/14/1988

RPI 921

Pedido de patente depositado

#2.1

02/23/1988

RPI 905

Carta-patente expirada

#21.1

Patente extinta em 27/10/2008

12/11/2012

RPI 2188

Concessão da patente

#16.1

10/27/1998

RPI 1451

Deferimento

#9.1

Deferido de acordo com a lei 9279 de 14/05/96.

03/24/1998

RPI 1422

Exigência - art. 36 da LPI

#6.1

02/21/1995

RPI 1264

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