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Official data from INPI

DISPOSITIVO PARA SEPARAR OS COMPONENTES DE UMA MISTURA DE AREIA E RESÍDUOS VEGETAIS

ConcedidaInvention Patent

Application data

Number

PI8105048

Type

Invention Patent

Filing

08/05/1981

Publication

04/20/1982

Progress at the INPI

  1. Filing08/05/81
  2. Publication04/20/82
  3. Examination04/24/84
  4. Allowance12/06/88
  5. Grant08/29/89
  6. In force08/05/01

The patent was granted on 08/29/1989 and is in force until 08/05/2001. Until then, no one may make, use or sell the invention in Brazil without the owner's authorisation.

Protection valid until:08/05/2001

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Latest action published by the INPI: 08/29/1989. 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

D. S. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

175,569 · 08/06/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/29/1989

RPI 984

Notificação para pagamento de retribuição

#13.1

04/25/1989

RPI 966

Deferimento

#9.1

12/06/1988

RPI 946

Exigência - art. 36 da LPI

#6.1

07/05/1988

RPI 924

Conhecimento de parecer técnico

#7.1

08/06/1985

RPI 772

Exigência - art. 36 da LPI

#6.1

11/20/1984

RPI 735

Solicitação de exame técnico

#4.1

04/24/1984

RPI 705

Publicação do pedido de patente

#3.1

04/20/1982

RPI 600

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