Official data from INPI

DISPOSITIVO PARA CORRECAO AUTOMATICA DAS IRREGULARIDADES DO TERRENO,APLICADO A NIVELADORES DE SOLO

Em AnáliseInvention Patent

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Application data

Number

PI7607128

Type

Invention Patent

Filing

10/25/1976

Publication

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Progress at the INPI

Filing10/25/76
Publication
Examination
Allowance
Grant
Expired07/27/93

The letters patent expired on 07/27/1993: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 07/26/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

TERRAGRO AGROPECUARIA LTD

Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.7

07/26/1983

RPI 666

20.4

07/05/1983

RPI 663

Notificação para pagamento de retribuição

#13.1

06/01/1982

RPI 606

Carta-patente expirada

#21.1

07/27/1993

RPI 1182

From the same holder

VALETADEIRA ROTATIVA SOBRE-RODA COM GARRAS RETRATEIS

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