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Official data from INPI

COMPOSICAO A BASE DE POLIURETANO,PAREDE ANTI-FOGO E PROCESSO DE FABRICACAO DA MESMA

ConcedidaInvention Patent
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Application data

Number

PI8007828

Type

Invention Patent

Filing

11/28/1980

Publication

07/27/1982
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Progress at the INPI

  1. Filing11/28/80
  2. Publication07/27/82
  3. Examination05/22/84
  4. Allowance12/16/86
  5. Grant08/25/87
  6. Terminated08/09/94

The patent was granted on 08/25/1987 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: 08/25/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

NAPHTACHIMIE SA [FR]

Inventors

B. C. (pessoa física)

D. N. (pessoa física)

Technical data

IPC Classification

C08J 5/24

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/25/1987

RPI 879

Notificação para pagamento de retribuição

#13.1

05/05/1987

RPI 863

Deferimento

#9.1

12/16/1986

RPI 843

Republicação - classificação IPC

#15.11

05/27/1986

RPI 814

Exigência - art. 36 da LPI

#6.1

04/29/1986

RPI 810

Exigência - art. 36 da LPI

#6.1

04/16/1985

RPI 756

Solicitação de exame técnico

#4.1

05/22/1984

RPI 709

Publicação do pedido de patente

#3.1

07/27/1982

RPI 614

Anuidade - prazo legal encerrado

#18.2

08/09/1994

RPI 1236

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