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Official data from INPI

PROCESSO APERFEICOADO PARA A PRODUCAO DE UREIA COM PURIFICACAO DAS AGUAS DE DESCARGA

Em AnáliseInvention Patent

Application data

Number

PI7706063

Type

Invention Patent

Filing

09/09/1976

Publication

-

Progress at the INPI

  1. Filing09/09/76
  2. Publication
  3. Examination
  4. Allowance05/31/83
  5. Grant01/31/84
  6. Terminated07/12/88

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: 07/12/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. P. (pessoa física)

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Inventors

L. V. (pessoa física)

Z. U. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

07/12/1988

RPI 925

Concessão da patente

#16.1

01/31/1984

RPI 693

Notificação para pagamento de retribuição

#13.1

09/27/1983

RPI 675

Deferimento

#9.1

05/31/1983

RPI 658

Exigência - art. 36 da LPI

#6.1

11/09/1982

RPI 629

Exigência - art. 36 da LPI

#6.1

12/22/1981

RPI 583

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