Official data from INPI

MÉTODO PARA RETIFICAÇAO A FRIO ROLOS DE BORRACHA.

Prazo de SigiloInvention Patent

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Application data

Number

PI8802461

Type

Invention Patent

Filing

05/20/1988

Publication

01/02/1990

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Progress at the INPI

Filing05/20/88
Publication01/02/90
Examination10/23/90
Allowance02/18/92
Abandoned
In force

The application was allowed on 02/18/1992 but abandoned for failure to pay the grant fee (art. 38 of the Brazilian IP Act). The letters patent were never issued.

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Latest action published by the INPI: 10/11/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Companhia Siderúrgica Nacional - CSN

RJ, BR

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Inventors

A. M. (pessoa física)

D. L. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

10/11/1988

RPI 938

Arquivamento - Art. 38 §2° da LPI

#11.4

08/31/1993

RPI 1187

15.7

06/22/1993

RPI 1177

Notificação para pagamento de retribuição

#13.1

07/07/1992

RPI 1127

Deferimento

#9.1

02/18/1992

RPI 1107

Exigência - art. 36 da LPI

#6.1

10/08/1991

RPI 1088

Solicitação de exame técnico

#4.1

10/23/1990

RPI 1038

Publicação do pedido de patente

#3.1