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Official data from INPI

ARTIGO ISOLANTE DO CALOR FEITO DE MATERIAL REFRATARIO EXOTERMICO E PROCESSO PARA SUA FABRICACAO

ConcedidaInvention Patent

Application data

Number

PI7804627

Type

Invention Patent

Filing

07/19/1977

Publication

-

Progress at the INPI

  1. Filing07/19/77
  2. Publication
  3. Examination
  4. Allowance09/08/87
  5. Grant04/26/88
  6. Terminated01/28/92

The patent was granted on 04/26/1988 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 04/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

FOSECO TRADING AG

See this company's full portfolio

Inventors

N. F. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/26/1988

RPI 914

Notificação para pagamento de retribuição

#13.1

01/26/1988

RPI 901

Deferimento

#9.1

09/08/1987

RPI 881

Exigência - art. 36 da LPI

#6.1

02/24/1987

RPI 853

Exigência - art. 36 da LPI

#6.1

10/13/1982

RPI 625

6.2

12/29/1981

RPI 584

Anuidade - prazo legal encerrado

#18.2

01/28/1992

RPI 1104

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