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Official data from INPI

PROCESSO PARA PREPARAÇÃO DE UM ELEMENTO DE FILTRO A PARTIR DE FILAMENTOS POLIOLEFÍNICOS

Em AnáliseInvention Patent

Application data

Number

PI8500135

Type

Invention Patent

Filing

01/11/1985

Publication

08/20/1985

Progress at the INPI

  1. Filing01/11/85
  2. Publication08/20/85
  3. Examination09/29/87
  4. Allowance03/03/92
  5. Grant04/27/93
  6. Expired07/15/08

The letters patent expired on 07/15/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 09/29/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

H. I. (pessoa física)

US

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Inventors

J. C. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

570.115 · 01/12/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

09/29/1987

RPI 884

Publicação do pedido de patente

#3.1

08/20/1985

RPI 774

Pedido de patente depositado

#2.1

04/16/1985

RPI 756

Carta-patente expirada

#21.1

Patente extinta em 11/01/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

04/27/1993

RPI 1169

14.1

11/24/1992

RPI 1147

Notificação para pagamento de retribuição

#13.1

07/28/1992

RPI 1130

Deferimento

#9.1

03/03/1992

RPI 1109

Exigência - art. 36 da LPI

#6.1

07/23/1991

RPI 1077

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