Official data from INPI

PROCESSO PARA REMOCAO DE FERRO DE MINERIO DE MAGNESITA

Em AnáliseInvention Patent

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Application data

Number

PI7707023

Type

Invention Patent

Filing

10/20/1976

Publication

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Progress at the INPI

Filing10/20/76
Publication
Examination
Allowance05/10/83
Grant01/31/84
Terminated07/12/88

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: 07/12/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

O. F. (pessoa física)

Inventors

B. H. (pessoa física)

Technical data

IPC Classification

C22B 1/08 C22B 1/10

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

07/12/1988

RPI 925

Concessão da patente

#16.1

01/31/1984

RPI 693

Notificação para pagamento de retribuição

#13.1

09/27/1983

RPI 675

Deferimento

#9.1

05/10/1983

RPI 655

Exigência - art. 36 da LPI

#6.1

06/15/1982

RPI 608

6.2

12/22/1981

RPI 583

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