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Official data from INPI

INSTALACAO DE CONTROLE PARA VALVULAS SEMICONDUTORAS

Em AnáliseInvention Patent

Application data

Number

PI7900020

Type

Invention Patent

Filing

01/04/1978

Publication

-

Progress at the INPI

  1. Filing01/04/78
  2. Publication
  3. Examination
  4. Allowance09/21/82
  5. Grant04/26/83
  6. Terminated05/17/88

The patent was granted on 04/26/1983 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: 05/17/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BBC BROWN BOVERI & CIE

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Inventors

E. B. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/17/1988

RPI 917

Concessão da patente

#16.1

04/26/1983

RPI 653

Notificação para pagamento de retribuição

#13.1

01/25/1983

RPI 640

Deferimento

#9.1

09/21/1982

RPI 622

Exigência - art. 36 da LPI

#6.1

03/30/1982

RPI 597

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