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Official data from INPI

CIGARRO COM PONTA DE FILTRO E PROCESSO E APARELHO PARA PRODUCAO DO MESMO

Em AnáliseInvention Patent

Application data

Number

PI7701157

Type

Invention Patent

Filing

03/01/1976

Publication

-

Progress at the INPI

  1. Filing03/01/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant07/27/82
  6. Expired09/21/93

The letters patent expired on 09/21/1993: 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: 12/20/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

LIGGETT & MYERS INC

Inventors

C. D. (pessoa física)

M. C. (pessoa física)

N. V. (pessoa física)

S. N. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

12/20/1983

RPI 687

20.4

12/06/1983

RPI 685

Concessão da patente

#16.1

07/27/1982

RPI 614

Notificação para pagamento de retribuição

#13.1

12/22/1981

RPI 583

Carta-patente expirada

#21.1

09/21/1993

RPI 1190

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