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Official data from INPI

CONJUNTO DE FIXACAO PARA UM SINO DE PERFURACAO E/OU ASPIRACAO EM PERFURATRIZES

Em AnáliseInvention Patent

Application data

Number

PI8506173

Type

Invention Patent

Filing

12/11/1984

Publication

08/26/1986

Progress at the INPI

  1. Filing12/11/84
  2. Publication08/26/86
  3. Examination10/21/86
  4. Allowance
  5. Grant
  6. In force

Published on 08/26/1986, the application is awaiting technical examination at the INPI, which decides whether the invention meets the patentability requirements.

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Latest action published by the INPI: 11/22/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

FISCHER ARTUR DR H C [DE]

Inventors

F. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

11/22/1988

RPI 944

14.1

10/06/1987

RPI 885

Solicitação de exame técnico

#4.1

10/21/1986

RPI 835

Publicação do pedido de patente

#3.1

08/26/1986

RPI 827

Pedido de patente depositado

#2.1

02/25/1986

RPI 801

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