Official data from INPI

SEM TITULO

ConcedidaInvention Patent

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Application data

Number

PI8102501

Type

Invention Patent

Filing

04/24/1981

Publication

01/05/1982

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Progress at the INPI

Filing04/24/81
Publication01/05/82
Examination09/27/83
Allowance12/11/84
Grant05/28/85
Expired10/01/96

The letters patent expired on 10/01/1996: 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: 05/28/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Pacific Engineering Co., Ltd.

Inventors

M. E. (pessoa física)

Technical data

IPC Classification

H01H 85/08

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/28/1985

RPI 762

Notificação para pagamento de retribuição

#13.1

04/09/1985

RPI 755

Deferimento

#9.1

12/11/1984

RPI 738

Exigência - art. 36 da LPI

#6.1

07/03/1984

RPI 715

Solicitação de exame técnico

#4.1

09/27/1983

RPI 675

Publicação do pedido de patente

#3.1

01/05/1982

RPI 585

Carta-patente expirada

#21.1

10/01/1996

RPI 1348

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