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Official data from INPI

REVESTIMENTO REFRATÁRIO AO FOGO PARA TUBOS EM FORNOS DE PREAQUECIMENTO

DeferidaInvention Patent

Application data

Number

PI8601388

Type

Invention Patent

Filing

03/26/1986

Publication

12/02/1986

Progress at the INPI

  1. Filing03/26/86
  2. Publication12/02/86
  3. Examination01/10/89
  4. Allowance11/14/89
  5. Grant06/26/90
  6. Terminated12/31/96

The patent was granted on 06/26/1990 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Bloom Engineering Gmbh

DE

Inventors

P. S. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 35 11 606.4 · 03/29/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

11/14/1989

RPI 995

Solicitação de exame técnico

#4.1

01/10/1989

RPI 951

Publicação do pedido de patente

#3.1

12/02/1986

RPI 841

Pedido de patente depositado

#2.1

10/21/1986

RPI 835

Anuidade - prazo legal encerrado

#18.2

12/31/1996

RPI 1361

Concessão da patente

#16.1

06/26/1990

RPI 1024

Notificação para pagamento de retribuição

#13.1

03/20/1990

RPI 1010

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