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Official data from INPI

TROCADOR DE CALOR ESFRIADO A AR PARA TORRES DE RESFRIAMENTO DE AGUA

Em AnáliseInvention Patent

Application data

Number

PI7702319

Type

Invention Patent

Filing

04/13/1977

Publication

-

Progress at the INPI

  1. Filing04/13/77
  2. Publication
  3. Examination
  4. Allowance
  5. Grant08/31/82
  6. In force04/13/97

The patent was granted on 08/31/1982 and is in force until 04/13/1997. Until then, no one may make, use or sell the invention in Brazil without the owner's authorisation.

Protection valid until:04/13/1997

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Latest action published by the INPI: 01/13/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Z. K. (pessoa física)

Inventors

Z. K. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

22.2

01/13/1987

RPI 847

Anuidade - prazo legal encerrado

#18.2

08/26/1986

RPI 827

Pedido de licença compulsória

#20.1

09/10/1985

RPI 777

Pedido de licença compulsória

#20.1

08/27/1985

RPI 775

Concessão da patente

#16.1

08/31/1982

RPI 619

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