Official data from INPI

SEM TITULO

ConcedidaInvention Patent

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Application data

Number

PI8105461

Type

Invention Patent

Filing

08/26/1981

Publication

05/11/1982

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Progress at the INPI

Filing08/26/81
Publication05/11/82
Examination06/05/84
Allowance07/09/85
Grant12/31/85
Expired08/19/08

The letters patent expired on 08/19/2008: 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: 12/31/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SONY CORP

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Inventors

M. T. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/31/1985

RPI 793

Notificação para pagamento de retribuição

#13.1

11/12/1985

RPI 786

Deferimento

#9.1

07/09/1985

RPI 768

Republicação - classificação IPC

#15.11

04/30/1985

RPI 758

Exigência - art. 36 da LPI

#6.1

12/26/1984

RPI 740

Solicitação de exame técnico

#4.1

06/05/1984

RPI 711

Publicação do pedido de patente

#3.1

05/11/1982

RPI 603

Carta-patente expirada

#21.1

Patente extinta em 26/03/96

08/19/2008

RPI 1963

From the same holder

SEM TITULO SEM TITULO SEM TITULO SEM TITULO SEM TITULO SEM TITULO SEM TITULO

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