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Official data from INPI

SISTEMA DE REVESTIMENTO REFRATÁRIO MODULADO PARA TUBOS DE QUEIMADORES DE FORMOS ROTATIVOS

ConcedidaInvention Patent

Application data

Number

PI8400119

Type

Invention Patent

Filing

01/11/1984

Publication

08/13/1985

Progress at the INPI

  1. Filing01/11/84
  2. Publication08/13/85
  3. Examination11/12/85
  4. Allowance12/06/88
  5. Grant09/26/89
  6. Terminated02/25/92

The patent was granted on 09/26/1989 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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Magnesita S/A

MG, BR

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Inventors

R. M. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Notificação para pagamento de retribuição

#13.1

04/25/1989

RPI 966

Deferimento

#9.1

12/06/1988

RPI 946

Exigência - art. 36 da LPI

#6.1

05/24/1988

RPI 918

Solicitação de exame técnico

#4.1

11/12/1985

RPI 786

Publicação do pedido de patente

#3.1

08/13/1985

RPI 773

Pedido de patente depositado

#2.1

03/20/1984

RPI 700

Anuidade - prazo legal encerrado

#18.2

02/25/1992

RPI 1108

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