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Official data from INPI

APERFEIÇOAMENTO EM FILTRO

ConcedidaInvention Patent

Application data

Number

PI8204365

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. Allowance12/17/85
  5. Grant06/24/86
  6. Terminated06/26/90

The patent was granted on 06/24/1986 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: 06/24/1986. 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

06/24/1986

RPI 818

Notificação para pagamento de retribuição

#13.1

04/22/1986

RPI 809

Deferimento

#9.1

12/17/1985

RPI 791

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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