Official data from INPI

SEM TITULO

ConcedidaInvention Patent

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Application data

Number

PI8303116

Type

Invention Patent

Filing

06/13/1983

Publication

01/22/1985

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Progress at the INPI

Filing06/13/83
Publication01/22/85
Examination04/30/85
Allowance07/08/86
Grant04/28/87
Expired07/01/08

The letters patent expired on 07/01/2008: 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: 04/28/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Truffi SA Industria Comercio

SP, BR

Inventors

T. H. (pessoa física)

Technical data

IPC Classification

H01H 3/58

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/28/1987

RPI 862

Notificação para pagamento de retribuição

#13.1

11/04/1986

RPI 837

Deferimento

#9.1

07/08/1986

RPI 820

Pedido de certificado de adição de invenção

#5.1

10/01/1985

RPI 780

Solicitação de exame técnico

#4.1

04/30/1985

RPI 758

Publicação do pedido de patente

#3.1

01/22/1985

RPI 744

Pedido de patente depositado

#2.1

07/26/1983

RPI 666

Carta-patente expirada

#21.1

Patente extinta em 13/06/98

07/01/2008

RPI 1956

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