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Official data from INPI

PROCESSO PARA A PRODUCAO DE UM GAS DE AQUECIMENTO CONTENDO METANO

ConcedidaInvention Patent

Application data

Number

PI7706069

Type

Invention Patent

Filing

09/13/1976

Publication

-

Progress at the INPI

  1. Filing09/13/76
  2. Publication
  3. Examination
  4. Allowance08/02/83
  5. Grant01/31/84
  6. Terminated01/21/92

The patent was granted on 01/31/1984 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: 01/31/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

METALLGESELLSCHAFT AG

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Inventors

J. H. (pessoa física)

M. F. (pessoa física)

M. H. (pessoa física)

R. H. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

01/31/1984

RPI 693

Notificação para pagamento de retribuição

#13.1

11/22/1983

RPI 683

Deferimento

#9.1

08/02/1983

RPI 667

Exigência - art. 36 da LPI

#6.1

02/01/1983

RPI 641

6.2

01/26/1982

RPI 588

Anuidade - prazo legal encerrado

#18.2

01/21/1992

RPI 1103

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