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Official data from INPI

PROCESSO PARA CONTROLAR O EQUILÍBRIO DE ENERGIA EM UM DISPOSITIVO O QUAL PERDE CALOR ATRAVÉS DE MEMBROS DE PAREDE E APARELHO DE CONTROLE AUTOMÁTICO PARA UTILIZAÇÃO DO DITO PROCESSO.

Em AnáliseInvention Patent

Application data

Number

PI8106376

Type

Invention Patent

Filing

10/02/1981

Publication

06/22/1982

Progress at the INPI

  1. Filing10/02/81
  2. Publication06/22/82
  3. Examination06/26/84
  4. Allowance07/30/85
  5. Grant02/04/86
  6. Terminated05/24/88

The patent was granted on 02/04/1986 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: 05/24/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ALUMINUM COMPANY OF AMERICA

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Inventors

H. E. (pessoa física)

S. J. (pessoa física)

Technical data

IPC Classification

Priority claims

US

193.597 · 10/03/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/24/1988

RPI 918

Concessão da patente

#16.1

02/04/1986

RPI 798

Deferimento

#9.1

07/30/1985

RPI 771

Republicação - classificação IPC

#15.11

06/11/1985

RPI 764

Exigência - art. 36 da LPI

#6.1

01/15/1985

RPI 743

Solicitação de exame técnico

#4.1

06/26/1984

RPI 714

Publicação do pedido de patente

#3.1

06/22/1982

RPI 609

Pedido de patente depositado

#2.1

11/17/1981

RPI 578

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