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Official data from INPI

FILTRO PARA FUMAÇA DE TABACO

ConcedidaInvention Patent

Application data

Number

PI8202695

Type

Invention Patent

Filing

05/07/1982

Publication

04/19/1983

Progress at the INPI

  1. Filing05/07/82
  2. Publication04/19/83
  3. Examination07/16/85
  4. Allowance07/12/88
  5. Grant11/29/88
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 11/29/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Cigarette

Cigarette Components Limited

GB

Inventors

R. B. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

261.690 · 05/07/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/29/1988

RPI 945

Notificação para pagamento de retribuição

#13.1

11/16/1988

RPI 943

Deferimento

#9.1

07/12/1988

RPI 925

6.2

03/04/1987

RPI 854

Solicitação de exame técnico

#4.1

07/16/1985

RPI 769

Publicação do pedido de patente

#3.1

04/19/1983

RPI 652

Pedido de patente depositado

#2.1

06/22/1982

RPI 609

Carta-patente expirada

#21.1

Patente extinta em 07/05/97

07/01/2008

RPI 1956

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