Official data from INPI

REBOLO DE ESMERIL TRATADO COM CERA

Em AnáliseInvention Patent

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Application data

Number

PI7802970

Type

Invention Patent

Filing

05/14/1977

Publication

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Progress at the INPI

Filing05/14/77
Publication
Examination
Allowance04/27/82
Grant
Expired11/30/93

The letters patent expired on 11/30/1993: 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: 11/12/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DAICHIKU CO LTD

Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

18.8

11/12/1985

RPI 786

Anuidade - prazo legal encerrado

#18.2

07/30/1985

RPI 771

22.9

02/22/1983

RPI 644

Notificação para pagamento de retribuição

#13.1

08/31/1982

RPI 619

Deferimento

#9.1

04/27/1982

RPI 601

Carta-patente expirada

#21.1

11/30/1993

RPI 1200

From the same holder

ESMERILHADORA GIRATORIA LAMINADA E METODO DE FABRICACAO

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