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Official data from INPI

PROCESSO PARA AQUECER AR DE PROCESSAMENTO PARA FINS INDUSTRIAIS.

Em ExigênciaInvention Patent
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Application data

Number

PI8306324

Type

Invention Patent

Filing

11/18/1983

Publication

11/13/1984
View on INPI

Progress at the INPI

  1. Filing11/18/83
  2. Publication11/13/84
  3. Examination11/04/86
  4. Allowance03/13/90
  5. Grant09/25/90
  6. Terminated05/09/95

The patent was granted on 09/25/1990 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: 05/09/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SKF Steel Engineering AB, companhia sueca.

SE

Inventors

G. M. (pessoa física)

SE

J. T. (pessoa física)

SE

S. S. (pessoa física)

SE

Technical data

IPC Classification

B01J 19/08F23L 15/00

Priority claims

SE

83 01 698-0 · 03/28/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

05/09/1989

RPI 968

6.2

09/15/1987

RPI 882

Solicitação de exame técnico

#4.1

11/04/1986

RPI 837

Publicação do pedido de patente

#3.1

11/13/1984

RPI 734

Pedido de patente depositado

#2.1

01/31/1984

RPI 693

Anuidade - prazo legal encerrado

#18.2

05/09/1995

RPI 1275

Concessão da patente

#16.1

09/25/1990

RPI 1034

Notificação para pagamento de retribuição

#13.1

07/24/1990

RPI 1025

Deferimento

#9.1

03/13/1990

RPI 1009

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