Official data from INPI

DISPOSITIVO E PROCESSO PARA A REGENERACAO OU FABRICACAO DE CARVAO ATIVADO

Em AnáliseInvention Patent

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Application data

Number

PI7605762

Type

Invention Patent

Filing

09/02/1975

Publication

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Progress at the INPI

Filing09/02/75
Publication
Examination
Allowance
Grant04/27/82
Terminated03/20/84

The patent was granted on 04/27/1982 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: 03/20/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

NICHOLS ENG & RES CORP

Inventors

S. S. (pessoa física)

Technical data

IPC Classification

C10B 31/08

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

03/20/1984

RPI 700

Concessão da patente

#16.1

04/27/1982

RPI 601

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