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Official data from INPI

MÉTODO PARA EXECUÇÃO DE FUROS EM BLOCOS DE ESCARFAR

Em AnáliseInvention Patent

Application data

Number

PI8505550

Type

Invention Patent

Filing

10/30/1985

Publication

06/09/1987

Progress at the INPI

Awaiting grant fee payment
  1. Filing10/30/85
  2. Publication06/09/87
  3. Examination09/08/87
  4. Allowance11/06/90
  5. Grant
  6. In force

The application was allowed by the INPI on 11/06/1990. The grant of the letters patent is being processed.

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Latest action published by the INPI: 09/08/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Companhia Siderúrgica de Tubarão S/A - CST

ES, BR

See this company's full portfolio

Inventors

A. C. (pessoa física)

BR

O. M. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

09/08/1987

RPI 881

Publicação do pedido de patente

#3.1

06/09/1987

RPI 868

Pedido de patente depositado

#2.1

01/28/1986

RPI 797

15.7

11/19/1991

RPI 1094

Retificação

#15.3

07/02/1991

RPI 1074

Deferimento

#9.1

11/06/1990

RPI 1040

15.8

08/14/1990

RPI 1028

Exigência - art. 36 da LPI

#6.1

01/09/1990

RPI 1001

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