Official data from INPI

APERFEIÇOAMENTO EM PROCESSO DE FABRICAÇÃO DE ELETRODO GRATIFICADO.

ConcedidaInvention Patent

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Application data

Number

PI8100611

Type

Invention Patent

Filing

01/30/1981

Publication

12/08/1981

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Progress at the INPI

Filing01/30/81
Publication12/08/81
Examination03/02/82
Allowance04/09/85
Grant10/29/85
Expired03/19/96

The letters patent expired on 03/19/1996: 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: 10/29/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Microlite S.A.

SP, BR

Microlite S/A.

SP, BR

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Inventors

I. E. (pessoa física)

Technical data

IPC Classification

H01M 4/04 H01M 4/08 H01M 4/96

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/29/1985

RPI 784

Notificação para pagamento de retribuição

#13.1

07/30/1985

RPI 771

Deferimento

#9.1

04/09/1985

RPI 755

Exigência - art. 36 da LPI

#6.1

08/21/1984

RPI 722

Solicitação de exame técnico

#4.1

03/02/1982

RPI 593

Publicação antecipada

#3.2

12/08/1981

RPI 581

Carta-patente expirada

#21.1

03/19/1996

RPI 1320

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