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Official data from INPI

PROCESSO PARA TRANSFORMAR FINOS DE MINERIO DE FERRO OU MANGANES DE GRANULOMETRIA INFERIOR A 150 MICRA EM MATERIA PRIMA PARA A SINTERIZACAO ATRAVES DE AGLOMERACAO E CURA A TEMPERATURAS INFERIORES A 300GRAD C

Em AnáliseInvention Patent

Application data

Number

PI7802010

Type

Invention Patent

Filing

03/31/1978

Publication

-

Progress at the INPI

  1. Filing03/31/78
  2. Publication
  3. Examination
  4. Allowance02/14/84
  5. Grant07/31/84
  6. Terminated06/29/93

The patent was granted on 07/31/1984 and later terminated. Protection ended before the full term and the technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 04/02/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. R. (pessoa física)

Inventors

L. B. (pessoa física)

S. U. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Cessão de direito de exploração

#22.1

04/02/1985

RPI 754

Concessão da patente

#16.1

07/31/1984

RPI 719

Notificação para pagamento de retribuição

#13.1

06/05/1984

RPI 711

Deferimento

#9.1

02/14/1984

RPI 695

Exigência - art. 36 da LPI

#6.1

03/16/1982

RPI 595

21.5

07/06/1993

RPI 1179

Carta-patente expirada

#21.1

06/29/1993

RPI 1178

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