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Official data from INPI

UNIDADE DE PROCESSAMENTO E FILTRAGEM.

IndeferidaInvention Patent

Application data

Number

PI8303609

Type

Invention Patent

Filing

07/05/1983

Publication

02/20/1985

Progress at the INPI

  1. Filing07/05/83
  2. Publication02/20/85
  3. Examination11/25/86
  4. Allowance
  5. Grant
  6. Terminated10/02/90

The patent was granted 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: 09/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

D. C. (pessoa física)

Inventors

D. L. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Republicação - classificação IPC

#15.11

09/27/1988

RPI 936

Indeferimento

#9.2

08/23/1988

RPI 931

Solicitação de exame técnico

#4.1

11/25/1986

RPI 840

Publicação do pedido de patente

#3.1

02/20/1985

RPI 748

Pedido de patente depositado

#2.1

10/02/1984

RPI 728

Pedido de patente depositado

#2.1

08/16/1983

RPI 669

Anuidade - prazo legal encerrado

#18.2

10/02/1990

RPI 1035

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