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Official data from INPI

PROCESSO DE MANTER A EFICIÊNCIA DE CONVERSÃO DE OXIDAÇÃO DE AMÔNIA EM UMA FÁBRICA DE ÁCIDO NÍTRICO E APARELHO ADEQUADO PARA O PROCESSO

Em AnáliseInvention Patent
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Application data

Number

PI7908182

Type

Invention Patent

Filing

12/14/1979

Publication

-
View on INPI

Progress at the INPI

  1. Filing12/14/79
  2. Publication
  3. Examination
  4. Allowance06/12/84
  5. Grant12/26/84
  6. Terminated06/14/88

The patent was granted on 12/26/1984 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 06/14/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Johnson Matthey & Co. Limited

GB

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Inventors

W. P. (pessoa física)

Technical data

IPC Classification

C01B 21/40

Priority claims

GB

48663/78 · 12/15/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/14/1988

RPI 921

Concessão da patente

#16.1

12/26/1984

RPI 740

Notificação para pagamento de retribuição

#13.1

10/02/1984

RPI 728

Deferimento

#9.1

06/12/1984

RPI 712

8.1

05/02/1984

RPI 706

Exigência - art. 36 da LPI

#6.1

11/16/1983

RPI 682

Republicação - classificação IPC

#15.11

07/26/1983

RPI 666

Exigência - art. 36 da LPI

#6.1

06/28/1983

RPI 662

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