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Official data from INPI

PROCESSO PARA DESNITRIFICACAO DE NITROGENIO DE NITRATO DE MATERIAIS DE TABACO,EXTRATOS DE TABACO OU EFLUENTES DE PROCESSAMENTO DE TABACO

Em AnáliseInvention Patent

Application data

Number

PI7902556

Type

Invention Patent

Filing

04/25/1978

Publication

-

Progress at the INPI

  1. Filing04/25/78
  2. Publication
  3. Examination
  4. Allowance12/20/83
  5. Grant07/31/84
  6. Expired06/21/94

The letters patent expired on 06/21/1994: 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: 07/18/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PHILIP MORRIS INC

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Inventors

S. B. (pessoa física)

T. D. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

07/18/1989

RPI 978

20.7

07/11/1989

RPI 977

Concessão da patente

#16.1

07/31/1984

RPI 719

Notificação para pagamento de retribuição

#13.1

05/22/1984

RPI 709

9.1.3

02/07/1984

RPI 694

Deferimento

#9.1

12/20/1983

RPI 687

Exigência - art. 36 da LPI

#6.1

04/05/1983

RPI 650

Exigência - art. 36 da LPI

#6.1

08/03/1982

RPI 615

Carta-patente expirada

#21.1

06/21/1994

RPI 1229

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