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Official data from INPI

FILTRO

ConcedidaInvention Patent

Application data

Number

PI8204363

Type

Invention Patent

Filing

07/27/1982

Publication

03/07/1984

Progress at the INPI

  1. Filing07/27/82
  2. Publication03/07/84
  3. Examination06/19/84
  4. Allowance08/25/87
  5. Grant05/31/88
  6. Terminated06/26/90

The patent was granted on 05/31/1988 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: 05/31/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Spiltec Filtros e Tecnologia Ltda S/C

SP, BR

Inventors

P. W. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/31/1988

RPI 919

Notificação para pagamento de retribuição

#13.1

12/15/1987

RPI 895

Deferimento

#9.1

08/25/1987

RPI 879

Exigência - art. 36 da LPI

#6.1

05/20/1986

RPI 813

Conhecimento de parecer técnico

#7.1

09/03/1985

RPI 776

Exigência - art. 36 da LPI

#6.1

03/05/1985

RPI 750

Solicitação de exame técnico

#4.1

06/19/1984

RPI 713

Publicação do pedido de patente

#3.1

03/07/1984

RPI 698

Pedido de patente depositado

#2.1

09/08/1982

RPI 620

Anuidade - prazo legal encerrado

#18.2

06/26/1990

RPI 1024

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