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Official data from INPI

PROCESSO E DISPOSITIVO PARA DETECTAR O PONTO DE TRAVAMENTO DAS HASTES EM UMA SONDAGEM

ConcedidaInvention Patent

Application data

Number

PI8107932

Type

Invention Patent

Filing

12/31/1980

Publication

09/14/1982

Progress at the INPI

  1. Filing12/31/80
  2. Publication09/14/82
  3. Examination10/23/84
  4. Allowance04/22/86
  5. Grant12/30/86
  6. Terminated06/27/95

The patent was granted on 12/30/1986 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: 12/30/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PRAD RES & DEV NV [NL]

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Inventors

H. M. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/30/1986

RPI 845

Notificação para pagamento de retribuição

#13.1

08/26/1986

RPI 827

Deferimento

#9.1

04/22/1986

RPI 809

Republicação - classificação IPC

#15.11

08/13/1985

RPI 773

Exigência - art. 36 da LPI

#6.1

04/30/1985

RPI 758

Solicitação de exame técnico

#4.1

10/23/1984

RPI 731

Publicação do pedido de patente

#3.1

09/14/1982

RPI 621

Pedido de patente depositado

#2.1

01/26/1982

RPI 588

Anuidade - prazo legal encerrado

#18.2

06/27/1995

RPI 1282

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