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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8102773

Type

Invention Patent

Filing

05/05/1981

Publication

06/07/1983

Progress at the INPI

  1. Filing05/05/81
  2. Publication06/07/83
  3. Examination09/20/83
  4. Allowance09/04/84
  5. Grant04/30/85
  6. 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: 04/30/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Metagal Industria e Comercio Ltda

SP, BR

See this company's full portfolio

Inventors

G. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/30/1985

RPI 758

Notificação para pagamento de retribuição

#13.1

12/26/1984

RPI 740

Deferimento

#9.1

09/04/1984

RPI 724

Solicitação de exame técnico

#4.1

09/20/1983

RPI 674

Publicação do pedido de patente

#3.1

06/07/1983

RPI 659

14.4

02/08/1983

RPI 642

Carta-patente expirada

#21.1

10/01/1996

RPI 1348

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