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Official data from INPI

UNIDADE DE DESOXIGENAÇÃO DE TROCA DE GÁS.

ConcedidaInvention Patent

Application data

Number

PI8107352

Type

Invention Patent

Filing

11/12/1981

Publication

08/03/1982

Progress at the INPI

  1. Filing11/12/81
  2. Publication08/03/82
  3. Examination10/16/84
  4. Allowance05/17/88
  5. Grant11/29/88
  6. In force11/12/01

The patent was granted on 11/29/1988 and is in force until 11/12/2001. Until then, no one may make, use or sell the invention in Brazil without the owner's authorisation.

Protection valid until:11/12/2001

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Latest action published by the INPI: 11/29/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

F. C. (pessoa física)

US

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Inventors

J. R. (pessoa física)

K. J. (pessoa física)

Technical data

IPC Classification

Priority claims

US

206.455 · 11/13/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/29/1988

RPI 945

Notificação para pagamento de retribuição

#13.1

09/06/1988

RPI 933

Deferimento

#9.1

05/17/1988

RPI 917

14.1

11/17/1987

RPI 891

Exigência - art. 36 da LPI

#6.1

07/28/1987

RPI 875

Exigência - art. 36 da LPI

#6.1

04/09/1985

RPI 755

Solicitação de exame técnico

#4.1

10/16/1984

RPI 730

Publicação do pedido de patente

#3.1

08/03/1982

RPI 615

Pedido de patente depositado

#2.1

12/29/1981

RPI 584

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