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Official data from INPI

APARELHO PARA FORMAÇÃO DE CANALETAS EM UM BASTÃO FILTRANTE

DeferidaInvention Patent

Application data

Number

PI8400500

Type

Invention Patent

Filing

02/06/1984

Publication

09/11/1984

Progress at the INPI

  1. Filing02/06/84
  2. Publication09/11/84
  3. Examination12/18/84
  4. Allowance11/14/89
  5. Grant05/29/90
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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: 11/14/1989. 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

B. L. (pessoa física)

US

E. F. (pessoa física)

US

J. S. (pessoa física)

US

K. M. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

464.277 · 02/07/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

11/14/1989

RPI 995

6.2

06/28/1988

RPI 923

Solicitação de exame técnico

#4.1

12/18/1984

RPI 739

Publicação do pedido de patente

#3.1

09/11/1984

RPI 725

Pedido de patente depositado

#2.1

04/24/1984

RPI 705

Carta-patente expirada

#21.1

Patente extinta em 06/02/99

07/08/2008

RPI 1957

Concessão da patente

#16.1

05/29/1990

RPI 1020

Notificação para pagamento de retribuição

#13.1

03/20/1990

RPI 1010

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