Official data from INPI

PROCESSO PARA FORMACAO DE UM MATERIAL ANTI-INCRUSTANTE E PROTETOR CONTRA LIMO

Em AnáliseInvention Patent

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Application data

Number

PI7901574

Type

Invention Patent

Filing

03/15/1978

Publication

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Progress at the INPI

Filing03/15/78
Publication
Examination11/24/81
Allowance12/06/83
Grant05/29/84
Terminated06/14/88

The patent was granted on 05/29/1984 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

KENNECOTT COPPER CORP

Inventors

M. D. (pessoa física)

Technical data

IPC Classification

C09D 5/14

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

05/29/1984

RPI 710

Notificação para pagamento de retribuição

#13.1

03/27/1984

RPI 701

Deferimento

#9.1

12/06/1983

RPI 685

6.2

06/01/1982

RPI 606

Solicitação de exame técnico

#4.1

11/24/1981

RPI 579

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