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Official data from INPI

APERFEIÇOAMENTO EM OU RELATIVO AO ACIONAMENTO DAS FERRAMENTAS PARA MÁQUINAS DE ELTRO-EROSÃO .

Em AnáliseInvention Patent

Application data

Number

PI7707133

Type

Invention Patent

Filing

10/25/1977

Publication

-

Progress at the INPI

  1. Filing10/25/77
  2. Publication
  3. Examination
  4. Allowance10/06/81
  5. Grant07/27/82
  6. Expired07/06/93

The letters patent expired on 07/06/1993: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 06/19/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ALTEC INDÚSTRIA E COMÉRCIO DE INSTRUMENTOS LTDA.

ALTEC-PESQUISA APLICADA E INDÚSTRIA LTDA

Inventors

I. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

06/19/1984

RPI 713

Concessão da patente

#16.1

07/27/1982

RPI 614

Notificação para pagamento de retribuição

#13.1

02/02/1982

RPI 589

Deferimento

#9.1

10/06/1981

RPI 572

Carta-patente expirada

#21.1

07/06/1993

RPI 1179

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