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Official data from INPI

CARBONETO CEMENTADO OU DE METAL DURO SINTERIZADO,PROCESSO PARA FABRICAR UM CARBONITRETO DE MOLIBDENIO-TUNGSTENIO E PROCESSO PARA FABRICAR O REFERIDO CARBONETO CEMENTADO

Em AnáliseInvention Patent

Application data

Number

PI7800491

Type

Invention Patent

Filing

01/27/1977

Publication

-

Progress at the INPI

  1. Filing01/27/77
  2. Publication
  3. Examination
  4. Allowance06/12/84
  5. Grant12/26/84
  6. Terminated09/18/90

The patent was granted on 12/26/1984 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: 06/24/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SANDVIK AB

See this company's full portfolio

Inventors

E. P. (pessoa física)

K. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Cessão de direito de exploração

#22.1

06/24/1986

RPI 818

Concessão da patente

#16.1

12/26/1984

RPI 740

Deferimento

#9.1

06/12/1984

RPI 712

Exigência - art. 36 da LPI

#6.1

12/27/1983

RPI 688

Exigência - art. 36 da LPI

#6.1

01/12/1982

RPI 586

Anuidade - prazo legal encerrado

#18.2

09/18/1990

RPI 1033

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