Official data from INPI

SEM TITULO

ConcedidaInvention Patent

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Application data

Number

PI8004615

Type

Invention Patent

Filing

07/24/1980

Publication

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Progress at the INPI

Filing07/24/80
Publication
Examination05/24/83
Allowance12/13/83
Grant06/26/84
Expired09/19/95

The letters patent expired on 09/19/1995: 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: 06/26/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Inventio Ag

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Inventors

J. F. (pessoa física)

Technical data

IPC Classification

H02M 7/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/26/1984

RPI 714

Notificação para pagamento de retribuição

#13.1

04/10/1984

RPI 703

Deferimento

#9.1

12/13/1983

RPI 686

Solicitação de exame técnico

#4.1

05/24/1983

RPI 657

Carta-patente expirada

#21.1

09/19/1995

RPI 1294

Pedido de licença compulsória

#20.1

06/07/1994

RPI 1227

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