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Official data from INPI

APERFEICOAMENTOS EM VALVULAS PARA TOMADA DE PRESSAO EM CABOS PRESSURIZADOS

Em AnáliseInvention Patent

Application data

Number

PI7606012

Type

Invention Patent

Filing

09/13/1976

Publication

-

Progress at the INPI

  1. Filing09/13/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant07/27/82
  6. Terminated11/17/87

The patent was granted on 07/27/1982 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: 11/17/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. T. (pessoa física)

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

11/17/1987

RPI 891

Concessão da patente

#16.1

07/27/1982

RPI 614

Notificação para pagamento de retribuição

#13.1

10/06/1981

RPI 572

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