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Official data from INPI

PROCESSO PARA A EXTRACAO DE CALOR DE UM LIQUIDO E DISPOSITIVO INJETOR DE MULTIPLOS ESTAGIOS PARA REFRIGERACAO DE UM LIQUIDO

Em AnáliseInvention Patent

Application data

Number

PI7603157

Type

Invention Patent

Filing

05/29/1975

Publication

-

Progress at the INPI

  1. Filing05/29/75
  2. Publication
  3. Examination
  4. Allowance
  5. Grant05/25/82
  6. Terminated11/17/87

The patent was granted on 05/25/1982 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/17/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BALTIMORE AIRCOIL CO INC

Inventors

E. J. (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

05/25/1982

RPI 605

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