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Official data from INPI

Processo aperfeiçoado para geração de nitrogênio om elevada pureza a aparelho.

ConcedidaInvention Patent

Application data

Number

PI8207473

Type

Invention Patent

Filing

12/29/1982

Publication

10/18/1983

Progress at the INPI

  1. Filing12/29/82
  2. Publication10/18/83
  3. Examination10/22/85
  4. Allowance05/31/88
  5. Grant12/27/88
  6. Terminated04/11/95

The patent was granted on 12/27/1988 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 12/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Bergwerksverband GMBH.

DE

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Inventors

B. H. (pessoa física)

Technical data

Priority claims

US

334.463 · 12/30/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/27/1988

RPI 949

Notificação para pagamento de retribuição

#13.1

09/20/1988

RPI 935

Deferimento

#9.1

05/31/1988

RPI 919

Exigência - art. 36 da LPI

#6.1

08/04/1987

RPI 876

Solicitação de exame técnico

#4.1

10/22/1985

RPI 783

Publicação do pedido de patente

#3.1

10/18/1983

RPI 678

Pedido de patente depositado

#2.1

02/16/1983

RPI 643

Anuidade - prazo legal encerrado

#18.2

04/11/1995

RPI 1271

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