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Official data from INPI

PROCESSO PARA A SEPARACAO DE GASES NOBRES DE FISSAO XENONIO E CRIPTONIO DE GASES RESIDUAIS DE APARELHAGENS DE TECNICA NUCLEAR E ARRANJO DE COLUNA PARA A EXECUCAO DO PROCESSO

ConcedidaInvention Patent

Application data

Number

PI8106786

Type

Invention Patent

Filing

10/21/1980

Publication

07/06/1982

Progress at the INPI

  1. Filing10/21/80
  2. Publication07/06/82
  3. Examination05/02/84
  4. Allowance08/20/85
  5. Grant04/29/86
  6. Expired08/19/08

The letters patent expired on 08/19/2008: 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: 04/29/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

KERNFORSCHUNGSZ KARLSRUHE [DE]

Inventors

H. E. (pessoa física)

H. R. (pessoa física)

W. F. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/29/1986

RPI 810

Notificação para pagamento de retribuição

#13.1

12/24/1985

RPI 792

Deferimento

#9.1

08/20/1985

RPI 774

Exigência - art. 36 da LPI

#6.1

02/26/1985

RPI 749

Exigência - art. 36 da LPI

#6.1

10/09/1984

RPI 729

Solicitação de exame técnico

#4.1

05/02/1984

RPI 706

Publicação do pedido de patente

#3.1

07/06/1982

RPI 611

Pedido de patente depositado

#2.1

12/08/1981

RPI 581

Carta-patente expirada

#21.1

Patente extinta em 21/10/96

08/19/2008

RPI 1963

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