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Official data from INPI

Material ou filtro e processo para filtração de óxido nítrico.

Em AnáliseInvention Patent

Application data

Number

PI8007475

Type

Invention Patent

Filing

11/13/1980

Publication

-

Progress at the INPI

  1. Filing11/13/80
  2. Publication
  3. Examination08/09/83
  4. Allowance12/11/84
  5. Grant07/30/85
  6. Terminated07/12/88

The patent was granted on 07/30/1985 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: 07/12/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

British Cellophane Limited

Inventors

M. D. (pessoa física)

Technical data

IPC Classification

Priority claims

GB

79.39185 · 11/13/1979

GB

80.19460 · 06/13/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

07/12/1988

RPI 925

Concessão da patente

#16.1

07/30/1985

RPI 771

Notificação para pagamento de retribuição

#13.1

04/09/1985

RPI 755

Deferimento

#9.1

12/11/1984

RPI 738

Exigência - art. 36 da LPI

#6.1

08/07/1984

RPI 720

Exigência - art. 36 da LPI

#6.1

01/17/1984

RPI 691

Solicitação de exame técnico

#4.1

08/09/1983

RPI 668

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