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Official data from INPI

PROCESSO PARA REMOVER SÓLIDOS FINOS SUSPENSOS DE UMA CORRENTE DE EFLUENTE.

ConcedidaInvention Patent

Application data

Number

PI8103429

Type

Invention Patent

Filing

06/01/1981

Publication

02/24/1982

Progress at the INPI

  1. Filing06/01/81
  2. Publication02/24/82
  3. Examination04/24/84
  4. Allowance03/14/89
  5. Grant09/26/89
  6. Terminated08/30/94

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

Applicants and inventors

Applicants

CHAMPION INT CORP

Inventors

F. H. (pessoa física)

Technical data

IPC Classification

Priority claims

US

154800 · 05/30/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Notificação para pagamento de retribuição

#13.1

05/23/1989

RPI 970

100

03/14/1989

RPI 960

120

06/07/1988

RPI 920

Petição de recurso

#12.2

09/15/1987

RPI 882

12.4

09/15/1987

RPI 882

Recurso

#12.1

06/23/1987

RPI 870

Indeferimento

#9.2

03/10/1987

RPI 855

Conhecimento de parecer técnico

#7.1

11/20/1984

RPI 735

Solicitação de exame técnico

#4.1

04/24/1984

RPI 705

Publicação do pedido de patente

#3.1

02/24/1982

RPI 592

Anuidade - prazo legal encerrado

#18.2

08/30/1994

RPI 1239

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