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Official data from INPI

FILTRO DE CIGARRO

ConcedidaInvention Patent

Application data

Number

PI8300641

Type

Invention Patent

Filing

02/09/1983

Publication

11/08/1983

Progress at the INPI

  1. Filing02/09/83
  2. Publication11/08/83
  3. Examination01/31/84
  4. Allowance02/09/88
  5. Grant08/30/88
  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: 08/30/1988. 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. G. (pessoa física)

Technical data

IPC Classification

Priority claims

US

349.103 · 02/16/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/30/1988

RPI 932

Notificação para pagamento de retribuição

#13.1

06/07/1988

RPI 920

Deferimento

#9.1

02/09/1988

RPI 903

Conhecimento de parecer técnico

#7.1

12/03/1985

RPI 789

Exigência - art. 36 da LPI

#6.1

04/02/1985

RPI 754

Solicitação de exame técnico

#4.1

01/31/1984

RPI 693

Publicação do pedido de patente

#3.1

11/08/1983

RPI 681

Pedido de patente depositado

#2.1

03/29/1983

RPI 649

Carta-patente expirada

#21.1

Patente extinta em 09/02/98

07/01/2008

RPI 1956

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