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Official data from INPI

FILTRO PARA CIGARRO E PROCESSO DE REALIZÁ-LO

Em AnáliseInvention Patent

Application data

Number

PI8600307

Type

Invention Patent

Filing

01/27/1986

Publication

10/07/1986

Progress at the INPI

  1. Filing01/27/86
  2. Publication10/07/86
  3. Examination12/02/86
  4. Allowance05/12/92
  5. Grant01/26/93
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 12/02/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Brown & Williamson Tobacco Corporation

US

See this company's full portfolio

Inventors

R. G. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

700.565 · 02/11/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

12/02/1986

RPI 841

Publicação do pedido de patente

#3.1

10/07/1986

RPI 833

Pedido de patente depositado

#2.1

07/22/1986

RPI 822

Carta-patente expirada

#21.1

Patente extinta em 27/01/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

01/26/1993

RPI 1156

Notificação para pagamento de retribuição

#13.1

10/06/1992

RPI 1140

Deferimento

#9.1

05/12/1992

RPI 1119

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