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Official data from INPI

APERFEICOAMENTO EM CONSTRUCAO DE TURBINA ADAPTADA PARA EMPREGO NUM TURBO-COMPRESSOR E EM PROCESSO DE VARIAR AS CARACTERISTICAS OPERACIONAIS DE UMA TURBINA CENTRIFUGA

Em AnáliseInvention Patent

Application data

Number

PI7603514

Type

Invention Patent

Filing

06/30/1975

Publication

-

Progress at the INPI

  1. Filing06/30/75
  2. Publication
  3. Examination
  4. Allowance
  5. Grant06/15/82
  6. Terminated11/17/87

The patent was granted on 06/15/1982 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

WALLACE MURRAY CORP

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Inventors

S. W. (pessoa física)

S. R. (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

06/15/1982

RPI 608

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