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Official data from INPI

FILTRO PARA FUMAÇA

ConcedidaInvention Patent

Application data

Number

PI8300490

Type

Invention Patent

Filing

02/01/1983

Publication

11/01/1983

Progress at the INPI

  1. Filing02/01/83
  2. Publication11/01/83
  3. Examination01/31/84
  4. Allowance06/14/88
  5. Grant02/28/89
  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: 02/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Brown & Williamson Tobacco corporation

US

Brown & Williamson Tobacco Corporation

US

See this company's full portfolio

Inventors

L. A. (pessoa física)

Technical data

IPC Classification

Priority claims

GB

8202943 · 02/02/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/28/1989

RPI 958

Notificação para pagamento de retribuição

#13.1

10/04/1988

RPI 937

Deferimento

#9.1

06/14/1988

RPI 921

Exigência - art. 36 da LPI

#6.1

01/12/1988

RPI 899

Conhecimento de parecer técnico

#7.1

11/12/1985

RPI 786

Exigência - art. 36 da LPI

#6.1

11/27/1984

RPI 736

Solicitação de exame técnico

#4.1

01/31/1984

RPI 693

Publicação do pedido de patente

#3.1

11/01/1983

RPI 680

Pedido de patente depositado

#2.1

03/15/1983

RPI 647

Carta-patente expirada

#21.1

Patente extinta em 01/02/98

07/01/2008

RPI 1956

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