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Official data from INPI

PROCESSO PARA OBTENCAO DE ADITIVO PARA MATERIAL DE FUMO,O ADITIVO OBTIDO E O MATERIAL DE FUMO COM TAL ADITIVO

ConcedidaInvention Patent

Application data

Number

PI7903030

Type

Invention Patent

Filing

05/12/1978

Publication

-

Progress at the INPI

  1. Filing05/12/78
  2. Publication
  3. Examination
  4. Allowance03/08/83
  5. Grant12/27/83
  6. Expired07/26/94

The letters patent expired on 07/26/1994: 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: 12/27/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SOUZA CRUZ IND & COM

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Inventors

R. W. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/27/1983

RPI 688

Notificação para pagamento de retribuição

#13.1

06/28/1983

RPI 662

Deferimento

#9.1

03/08/1983

RPI 646

15.0

07/20/1982

RPI 613

Exigência - art. 36 da LPI

#6.1

06/29/1982

RPI 610

Carta-patente expirada

#21.1

07/26/1994

RPI 1234

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