Official data from INPI

SUBSOLADOR AUTO-VIBRADOR

Em AnáliseInvention Patent

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Application data

Number

PI7706537

Type

Invention Patent

Filing

09/29/1977

Publication

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Progress at the INPI

Filing09/29/77
Publication
Examination
Allowance11/17/81
Grant
Expired07/06/93

The letters patent expired on 07/06/1993: 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: 01/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PISMEL TRATORES LTD

Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

01/26/1988

RPI 901

Notificação para pagamento de retribuição

#13.1

03/23/1982

RPI 596

Deferimento

#9.1

11/17/1981

RPI 578

Carta-patente expirada

#21.1

07/06/1993

RPI 1179

20.7

04/21/1992

RPI 1116

From the same holder

REGULADOR HIDRAULICO DE TRACAO PARA TRATORES FERRAMENTA ESPECIAL PARA RETIRAR A TAMPA DO SISTEMA HIDRAULICO DE TRATORES

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