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Official data from INPI

PROCESSO E DISPOSITIVO PARA TRATAMENTO CONTINUO DE ESCORIAS SULFUROSAS EM ESTADO FUNDENTE

ConcedidaInvention Patent

Application data

Number

PI7905004

Type

Invention Patent

Filing

08/04/1978

Publication

-

Progress at the INPI

  1. Filing08/04/78
  2. Publication
  3. Examination
  4. Allowance05/22/84
  5. Grant11/27/84
  6. Terminated09/25/90

The patent was granted on 11/27/1984 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: 11/27/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

KLOECKNER HUMBOLDT DEUTZ AG

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Inventors

P. P. (pessoa física)

P. R. (pessoa física)

W. H. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/27/1984

RPI 736

Notificação para pagamento de retribuição

#13.1

09/04/1984

RPI 724

Deferimento

#9.1

05/22/1984

RPI 709

Exigência - art. 36 da LPI

#6.1

12/20/1983

RPI 687

6.2

03/01/1983

RPI 645

Anuidade - prazo legal encerrado

#18.2

09/25/1990

RPI 1034

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