Official data from INPI

ESTRUTURA DE RETANÇÃO DE CABEÇA DE BOBINA.

Em AnáliseInvention Patent

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Application data

Number

PI8300035

Type

Invention Patent

Filing

01/06/1983

Publication

08/14/1984

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Progress at the INPI

Filing01/06/83
Publication08/14/84
Examination08/12/86
Allowance12/08/87
Grant05/31/88
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: 11/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Arno S.A.

SP, BR

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Inventors

B. G. (pessoa física)

Technical data

IPC Classification

H02K 3/46

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

11/28/1989

RPI 997

Concessão da patente

#16.1

05/31/1988

RPI 919

Deferimento

#9.1

12/08/1987

RPI 894

Exigência - art. 36 da LPI

#6.1

05/26/1987

RPI 866

Solicitação de exame técnico

#4.1

08/12/1986

RPI 825

Publicação do pedido de patente

#3.1

08/14/1984

RPI 721

Pedido de patente depositado

#2.1

02/22/1983

RPI 644

Carta-patente expirada

#21.1

Patente extinta em 06/01/98

07/01/2008

RPI 1956

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