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Official data from INPI

PROCESSO PARA FABRICAÇÃO DE CHAPAS DE FIBRAS LINGO-CELULÓSICAS-MINERAL COM PROPIEDADES RETARDANTES DE FOGO, E PRODUTOS RESULTANTES.

Em AnáliseInvention Patent

Application data

Number

PI7707520

Type

Invention Patent

Filing

11/09/1977

Publication

-

Progress at the INPI

  1. Filing11/09/77
  2. Publication
  3. Examination
  4. Allowance04/19/83
  5. Grant01/31/84
  6. Terminated08/28/90

The patent was granted on 01/31/1984 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 07/16/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Duratex S.A.

SP, BR

See this company's full portfolio

Inventors

C. C. (pessoa física)

BR

J. M. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

07/16/1985

RPI 769

Concessão da patente

#16.1

01/31/1984

RPI 693

Notificação para pagamento de retribuição

#13.1

09/06/1983

RPI 672

Deferimento

#9.1

04/19/1983

RPI 652

Exigência - art. 36 da LPI

#6.1

08/03/1982

RPI 615

Anuidade - prazo legal encerrado

#18.2

08/28/1990

RPI 1030

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