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Official data from INPI

SEM TITULO

Em AnáliseInvention Patent
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Application data

Number

PI8304413

Type

Invention Patent

Filing

08/16/1983

Publication

03/26/1985
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Progress at the INPI

  1. Filing08/16/83
  2. Publication03/26/85
  3. Examination07/30/85
  4. Allowance10/29/86
  5. Grant02/17/87
  6. Terminated04/30/96

The patent was granted on 02/17/1987 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: 12/15/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Filsan Engenharia e Serviços S/A.

SP, BR

Inventors

K. [. (pessoa física)

L. [. (pessoa física)

M. [. (pessoa física)

O. [. (pessoa física)

Pessoa física

Technical data

IPC Classification

C10K 3/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

12/15/1987

RPI 895

Concessão da patente

#16.1

02/17/1987

RPI 852

Deferimento

#9.1

10/29/1986

RPI 836

14.1

07/29/1986

RPI 823

Solicitação de exame técnico

#4.1

07/30/1985

RPI 771

Publicação do pedido de patente

#3.1

03/26/1985

RPI 753

Pedido de patente depositado

#2.1

10/25/1983

RPI 679

Anuidade - prazo legal encerrado

#18.2

04/30/1996

RPI 1326

Extinção — restauração

#21.2

05/04/1993

RPI 1170

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