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Official data from INPI

DISPOSITIVO PARA O CONTROLE DA DISTRIBUIÇÃO DE FLUÍDO EM UM SEPARADOR DE BAIXA TEMPERATURA.

Em AnáliseInvention Patent

Application data

Number

PI8009057

Type

Invention Patent

Filing

04/25/1980

Publication

04/06/1982

Progress at the INPI

  1. Filing04/25/80
  2. Publication04/06/82
  3. Examination10/04/83
  4. Allowance12/26/84
  5. Grant06/25/85
  6. Expired09/26/95

The letters patent expired on 09/26/1995: 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: 03/04/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Combustion Engineering, Inc.

US

National Tank Company.

US

See this company's full portfolio

Inventors

C. W. (pessoa física)

S. H. (pessoa física)

Technical data

IPC Classification

Priority claims

US

PCT/80/00474 · 04/25/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

03/04/1987

RPI 854

20.10

02/24/1987

RPI 853

Licença compulsória (variante)

#20.2

12/30/1986

RPI 845

Concessão da patente

#16.1

06/25/1985

RPI 766

Notificação para pagamento de retribuição

#13.1

04/16/1985

RPI 756

Deferimento

#9.1

12/26/1984

RPI 740

Exigência - art. 36 da LPI

#6.1

07/24/1984

RPI 718

Pedido de certificado de adição de invenção

#5.1

02/28/1984

RPI 697

Solicitação de exame técnico

#4.1

10/04/1983

RPI 676

Notificação de entrada na fase nacional - PCT

#1.3

04/06/1982

RPI 598

Carta-patente expirada

#21.1

09/26/1995

RPI 1295

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