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Official data from INPI

MECANISMO E MÉTODO PAR LAVAGEM CONTÍNUA EM CONTRACORRENTE.

ConcedidaInvention Patent

Application data

Number

PI8400525

Type

Invention Patent

Filing

02/03/1984

Publication

09/11/1984

Progress at the INPI

  1. Filing02/03/84
  2. Publication09/11/84
  3. Examination10/07/86
  4. Allowance09/06/88
  5. Grant07/25/89
  6. Terminated12/24/96

The patent was granted on 07/25/1989 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: 07/25/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

B. C. (pessoa física)

US

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Inventors

J. J. (pessoa física)

Technical data

IPC Classification

Priority claims

US

463.620 · 02/03/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/25/1989

RPI 979

Notificação para pagamento de retribuição

#13.1

12/27/1988

RPI 949

Deferimento

#9.1

09/06/1988

RPI 933

Solicitação de exame técnico

#4.1

10/07/1986

RPI 833

Publicação do pedido de patente

#3.1

09/11/1984

RPI 725

Pedido de patente depositado

#2.1

04/24/1984

RPI 705

Anuidade - prazo legal encerrado

#18.2

12/24/1996

RPI 1360

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