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Official data from INPI

PROCESSO PARA RESFRIAMENTO DE LÍQUIDOS E/OU GASES.

ConcedidaInvention Patent

Application data

Number

PI8007709

Type

Invention Patent

Filing

11/26/1980

Publication

07/27/1982

Progress at the INPI

  1. Filing11/26/80
  2. Publication07/27/82
  3. Examination10/09/84
  4. Allowance12/30/86
  5. Grant09/29/87
  6. Expired12/26/95

The letters patent expired on 12/26/1995: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 09/29/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. A. (pessoa física)

RJ, BR

Inventors

A. D. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/29/1987

RPI 884

Notificação para pagamento de retribuição

#13.1

05/12/1987

RPI 864

100

12/30/1986

RPI 845

Petição de recurso

#12.2

12/31/1985

RPI 793

Indeferimento

#9.2

09/17/1985

RPI 778

Exigência - art. 36 da LPI

#6.1

03/19/1985

RPI 752

Solicitação de exame técnico

#4.1

10/09/1984

RPI 729

Publicação do pedido de patente

#3.1

07/27/1982

RPI 614

Carta-patente expirada

#21.1

12/26/1995

RPI 1308

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