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Official data from INPI

BASTÀO DE FILTRO PARA FUMAÇA E O PROCESSO DE OBTENÇÃO DO MESMO

ConcedidaInvention Patent
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Application data

Number

PI8005539

Type

Invention Patent

Filing

08/28/1980

Publication

-
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Progress at the INPI

  1. Filing08/28/80
  2. Publication
  3. Examination
  4. Allowance07/08/86
  5. Grant06/30/87
  6. Expired09/26/95

The letters patent expired on 09/26/1995: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 06/30/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Souza Cruz S/A

RJ, BR

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Inventors

H. H. (pessoa física)

L. J. (pessoa física)

Technical data

IPC Classification

A24D 3/02A24D 3/08

Priority claims

GB

79.29768 · 08/28/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/30/1987

RPI 871

Notificação para pagamento de retribuição

#13.1

11/04/1986

RPI 837

Deferimento

#9.1

07/08/1986

RPI 820

Exigência - art. 36 da LPI

#6.1

10/01/1985

RPI 780

Exigência - art. 36 da LPI

#6.1

01/03/1984

RPI 689

Carta-patente expirada

#21.1

09/26/1995

RPI 1295

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