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Official data from INPI

SEM TITULO

ConcedidaInvention Patent
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Application data

Number

PI8300290

Type

Invention Patent

Filing

01/17/1983

Publication

08/28/1984
View on INPI

Progress at the INPI

  1. Filing01/17/83
  2. Publication08/28/84
  3. Examination06/02/87
  4. Allowance09/06/88
  5. Grant08/29/89
  6. Terminated04/18/95

The patent was granted on 08/29/1989 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: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Filsan Engenharia e Serviços S/A.

SP, BR

Inventors

L. G. (pessoa física)

Technical data

IPC Classification

B01D 45/12

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/29/1989

RPI 984

Notificação para pagamento de retribuição

#13.1

12/27/1988

RPI 949

Deferimento

#9.1

09/06/1988

RPI 933

14.4

10/06/1987

RPI 885

Solicitação de exame técnico

#4.1

06/02/1987

RPI 867

Retificação

#15.6

03/17/1987

RPI 856

Alteração de numeração

#15.1

11/25/1986

RPI 840

14.7

08/05/1986

RPI 824

14.4

07/29/1986

RPI 823

Publicação do pedido de patente

#3.1

08/28/1984

RPI 723

Pedido de patente depositado

#2.1

03/08/1983

RPI 646

Anuidade - prazo legal encerrado

#18.2

04/18/1995

RPI 1272

Extinção — restauração

#21.2

05/04/1993

RPI 1170

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