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Official data from INPI

SISTEMA DE TRATAMENTO,PROCESSO E APARELHO PARA DESIDRATAR UMA SUSPENSAO DE SOLIDOS

Em AnáliseInvention Patent

Application data

Number

PI7901699

Type

Invention Patent

Filing

04/20/1978

Publication

-

Progress at the INPI

  1. Filing04/20/78
  2. Publication
  3. Examination02/02/82
  4. Allowance08/30/83
  5. Grant03/27/84
  6. Terminated10/03/89

The patent was granted on 03/27/1984 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 10/03/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DORR OLIVER INC

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Inventors

F. M. (pessoa física)

Technical data

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

03/27/1984

RPI 701

Notificação para pagamento de retribuição

#13.1

12/20/1983

RPI 687

Deferimento

#9.1

08/30/1983

RPI 671

Republicação - classificação IPC

#15.11

02/08/1983

RPI 642

Exigência - art. 36 da LPI

#6.1

10/13/1982

RPI 625

Solicitação de exame técnico

#4.1

02/02/1982

RPI 589

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