Official data from INPI

SEM TITULO

ConcedidaInvention Patent

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Application data

Number

PI8103460

Type

Invention Patent

Filing

06/02/1981

Publication

02/24/1982

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Progress at the INPI

Filing06/02/81
Publication02/24/82
Examination08/16/83
Allowance01/02/85
Grant06/25/85
Expired10/08/96

The letters patent expired on 10/08/1996: 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: 06/25/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Sony Eveready Inc.

Inventors

A. T. (pessoa física)

N. T. (pessoa física)

Technical data

IPC Classification

H01M 10/24

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/25/1985

RPI 766

Notificação para pagamento de retribuição

#13.1

04/23/1985

RPI 757

Deferimento

#9.1

01/02/1985

RPI 741

Arquivamento - Art. 33 da LPI

#11.1

05/08/1984

RPI 707

Exigência - art. 36 da LPI

#6.1

05/02/1984

RPI 706

Solicitação de exame técnico

#4.1

08/16/1983

RPI 669

Publicação do pedido de patente

#3.1

02/24/1982

RPI 592

Carta-patente expirada

#21.1

10/08/1996

RPI 1349

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