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Official data from INPI

PROCESSO E APARELHAGEM PARA O TRATAMENTO BIOLÓGICO DE LAMAS.

ConcedidaInvention Patent
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Application data

Number

PI8300506

Type

Invention Patent

Filing

02/02/1983

Publication

11/08/1983
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Progress at the INPI

  1. Filing02/02/83
  2. Publication11/08/83
  3. Examination07/16/85
  4. Allowance09/06/88
  5. Grant06/27/89
  6. Terminated12/17/96

The patent was granted on 06/27/1989 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: 06/27/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

W. U. (pessoa física)

DE

Inventors

U. [. (pessoa física)

Technical data

IPC Classification

C02F 11/00

Priority claims

DE

P 32 03 445.8 · 02/02/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/27/1989

RPI 975

Notificação para pagamento de retribuição

#13.1

12/27/1988

RPI 949

Deferimento

#9.1

09/06/1988

RPI 933

Conhecimento de parecer técnico

#7.1

03/15/1988

RPI 908

6.2

11/18/1986

RPI 839

Solicitação de exame técnico

#4.1

07/16/1985

RPI 769

Publicação do pedido de patente

#3.1

11/08/1983

RPI 681

Pedido de patente depositado

#2.1

03/22/1983

RPI 648

Anuidade - prazo legal encerrado

#18.2

12/17/1996

RPI 1359

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