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Official data from INPI

SISTEMA DE TRAVAMENTO DO REVESTIMENTO REFRATÁRIO DA BOCA DO CONVERSOR LD.

ArquivadaInvention Patent

Application data

Number

PI8106047

Type

Invention Patent

Filing

09/22/1981

Publication

04/26/1983

Progress at the INPI

  1. Filing09/22/81
  2. Publication04/26/83
  3. Abandoned02/21/84
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: the INPI technical office action was not answered in time (art. 36 of the Brazilian IP Act). The technology is in the public domain in Brazil.

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Latest action published by the INPI: 10/01/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Companhia Siderúrgica Nacional - CSN

RJ, BR

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Inventors

C. C. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 36 §1° da LPI

#11.2

10/01/1985

RPI 780

Republicação - classificação IPC

#15.11

10/01/1985

RPI 780

Exigência - art. 36 da LPI

#6.1

02/05/1985

RPI 746

Pedido de certificado de adição de invenção

#5.1

07/17/1984

RPI 717

Solicitação de exame técnico

#4.1

02/21/1984

RPI 696

Publicação do pedido de patente

#3.1

04/26/1983

RPI 653

Pedido de patente depositado

#2.1

11/03/1981

RPI 576

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