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Official data from INPI

TIJOLO REFRATARIO E REVESTIMENTO REFRATARIO PARA FORNOS ROTATIVOS

ConcedidaInvention Patent

Application data

Number

PI8103853

Type

Invention Patent

Filing

06/19/1980

Publication

03/09/1982

Progress at the INPI

  1. Filing06/19/80
  2. Publication03/09/82
  3. Examination08/17/82
  4. Allowance10/09/84
  5. Grant04/30/85
  6. Terminated06/27/95

The patent was granted on 04/30/1985 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: 04/30/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SHINAGAWA REFRACTORIES CO

VEITSCHER MAGNESITWERKE AG

Inventors

H. [. (pessoa física)

K. [. (pessoa física)

Y. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/30/1985

RPI 758

Deferimento

#9.1

10/09/1984

RPI 729

Exigência - art. 36 da LPI

#6.1

05/22/1984

RPI 709

Exigência - art. 36 da LPI

#6.1

12/20/1983

RPI 687

Solicitação de exame técnico

#4.1

08/17/1982

RPI 617

Publicação do pedido de patente

#3.1

03/09/1982

RPI 594

Anuidade - prazo legal encerrado

#18.2

06/27/1995

RPI 1282

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