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Official data from INPI

DISPOSITIVO PARA DIAGRAFIA ELETROMAGNETICA EM SONDAGENS

Em AnáliseInvention Patent

Application data

Number

PI8106663

Type

Invention Patent

Filing

10/17/1980

Publication

07/13/1982

Progress at the INPI

  1. Filing10/17/80
  2. Publication07/13/82
  3. Examination09/08/82
  4. Allowance10/22/85
  5. Grant06/24/86
  6. Terminated07/12/88

The patent was granted on 06/24/1986 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: 07/12/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PRAD RES & DEV NV [NL]

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Inventors

T. Y. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

07/12/1988

RPI 925

Concessão da patente

#16.1

06/24/1986

RPI 818

Deferimento

#9.1

10/22/1985

RPI 783

Exigência - art. 36 da LPI

#6.1

02/20/1985

RPI 748

Exigência - art. 36 da LPI

#6.1

08/28/1984

RPI 723

Solicitação de exame técnico

#4.1

09/08/1982

RPI 620

Publicação do pedido de patente

#3.1

07/13/1982

RPI 612

Pedido de patente depositado

#2.1

12/01/1981

RPI 580

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