Official data from INPI

PROCESSO PARA A DEPURACAO DE ACIDO SULFURICO USADO PROVENIENTE DA NITRACAO DE DERIVADOS AROMATICOS HALOGENADOS

ConcedidaInvention Patent

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Application data

Number

PI7907415

Type

Invention Patent

Filing

11/15/1978

Publication

View on INPI

Progress at the INPI

Filing11/15/78
Publication
Examination09/08/82
Allowance04/24/84
Grant10/30/84
Terminated09/25/90

The patent was granted on 10/30/1984 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: 10/30/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

RIMAR SPA

Inventors

M. M. (pessoa física)

Technical data

IPC Classification

C01B 17/94

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/30/1984

RPI 732

Notificação para pagamento de retribuição

#13.1

08/21/1984

RPI 722

Deferimento

#9.1

04/24/1984

RPI 705

Exigência - art. 36 da LPI

#6.1

10/04/1983

RPI 676

6.2

03/22/1983

RPI 648

Solicitação de exame técnico

#4.1

09/08/1982

RPI 620

Anuidade - prazo legal encerrado

#18.2

09/25/1990

RPI 1034

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