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Official data from INPI

PROCESSO PARA TRATAR E REVESTIR TERMICAMENTE UMA LIGA A BASE DE NIQUEL

Em AnáliseInvention Patent
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Application data

Number

PI8005435

Type

Invention Patent

Filing

08/29/1979

Publication

-
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Progress at the INPI

  1. Filing08/29/79
  2. Publication
  3. Examination03/22/83
  4. Allowance02/14/84
  5. Grant08/28/84
  6. Terminated06/21/88

The patent was granted on 08/28/1984 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: 06/21/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SPECIAL METALS CORP [US]

Inventors

B. W. (pessoa física)

M. G. (pessoa física)

Technical data

IPC Classification

C22F 1/10

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/21/1988

RPI 922

Concessão da patente

#16.1

08/28/1984

RPI 723

Notificação para pagamento de retribuição

#13.1

06/05/1984

RPI 711

Deferimento

#9.1

02/14/1984

RPI 695

Solicitação de exame técnico

#4.1

03/22/1983

RPI 648

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