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Official data from INPI

DISPOSITIVO PARA ADUCAO DE SUBSTANCIAS QUIMICAS DISSOLVIDAS EM AGUA,PROCESSO E EMPREGO

Em AnáliseInvention Patent

Application data

Number

PI7902285

Type

Invention Patent

Filing

04/17/1978

Publication

-

Progress at the INPI

  1. Filing04/17/78
  2. Publication
  3. Examination
  4. Allowance07/12/83
  5. Grant01/31/84
  6. Terminated10/03/89

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: 10/03/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

METALLGESELLSCHAFT AG

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Inventors

F. J. (pessoa física)

G. M. (pessoa física)

L. K. (pessoa física)

P. R. (pessoa física)

S. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

10/03/1989

RPI 989

Concessão da patente

#16.1

01/31/1984

RPI 693

Notificação para pagamento de retribuição

#13.1

11/08/1983

RPI 681

Deferimento

#9.1

07/12/1983

RPI 664

Exigência - art. 36 da LPI

#6.1

12/07/1982

RPI 633

6.2

04/13/1982

RPI 599

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