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Official data from INPI

APARELHO E METODO DE IMPLANTACAO DE ION COM UMA ESTRUTURA REFRIGERADA QUE CONTROLA O POTENCIAL DE SUPERFICIE DE UMA SUPERFICIE DE ALVO

ConcedidaInvention Patent

Application data

Number

PI7802843

Type

Invention Patent

Filing

05/05/1977

Publication

-

Progress at the INPI

  1. Filing05/05/77
  2. Publication
  3. Examination
  4. Allowance06/01/82
  5. Grant11/30/82
  6. Expired11/30/93

The letters patent expired on 11/30/1993: 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: 11/30/1982. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

IBM

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Inventors

M. C. (pessoa física)

M. W. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/30/1982

RPI 632

Notificação para pagamento de retribuição

#13.1

09/21/1982

RPI 622

Deferimento

#9.1

06/01/1982

RPI 606

Exigência - art. 36 da LPI

#6.1

10/27/1981

RPI 575

Carta-patente expirada

#21.1

11/30/1993

RPI 1200

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