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Official data from INPI

PROCESSO PARA MINERACAO EM SOLUCOES DE SAIS DE UM DEPOSITO DE SAL SUBTERRANEO

Em AnáliseInvention Patent

Application data

Number

PI8004171

Type

Invention Patent

Filing

07/06/1979

Publication

-

Progress at the INPI

  1. Filing07/06/79
  2. Publication
  3. Examination03/22/83
  4. Allowance02/28/84
  5. Grant09/25/84
  6. Terminated09/26/89

The patent was granted on 09/25/1984 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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. R. (pessoa física)

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Inventors

S. W. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

09/26/1989

RPI 988

16.3

12/26/1984

RPI 740

Concessão da patente

#16.1

09/25/1984

RPI 727

Notificação para pagamento de retribuição

#13.1

06/12/1984

RPI 712

Deferimento

#9.1

02/28/1984

RPI 697

Solicitação de exame técnico

#4.1

03/22/1983

RPI 648

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