Official data from INPI

PROCESSO APERFEICOADO DE OBTENCAO DE ISOBUTILENO CONTIDO NUMA MISTURA DE HIDROCARBONETOS COM QUATRO ATOMOS DE CARBONO

Em AnáliseInvention Patent

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Application data

Number

PI7701072

Type

Invention Patent

Filing

02/27/1976

Publication

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Progress at the INPI

Filing02/27/76
Publication
Examination
Allowance03/02/82
Grant10/26/82
Terminated12/08/87

The patent was granted on 10/26/1982 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: 12/08/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

R. F. (pessoa física)

Inventors

M. J. (pessoa física)

Technical data

IPC Classification

C07C 11/08 C07C 7/10

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

12/08/1987

RPI 894

Concessão da patente

#16.1

10/26/1982

RPI 627

Notificação para pagamento de retribuição

#13.1

06/22/1982

RPI 609

Deferimento

#9.1

03/02/1982

RPI 593

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