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Official data from INPI

CONJUNTO DE LENTE ELETRO - ÓPTICA PARA SOLDAGEM.

ConcedidaInvention Patent

Application data

Number

PI8303276

Type

Invention Patent

Filing

06/20/1983

Publication

01/29/1985

Progress at the INPI

  1. Filing06/20/83
  2. Publication01/29/85
  3. Examination02/03/87
  4. Allowance02/09/88
  5. Grant09/27/88
  6. 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.

Talk to a specialist

Latest action published by the INPI: 09/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. E. (pessoa física)

Inventors

B. R. (pessoa física)

E. M. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/27/1988

RPI 936

Notificação para pagamento de retribuição

#13.1

06/07/1988

RPI 920

Deferimento

#9.1

02/09/1988

RPI 903

Solicitação de exame técnico

#4.1

02/03/1987

RPI 850

Publicação do pedido de patente

#3.1

01/29/1985

RPI 745

Pedido de patente depositado

#2.1

08/02/1983

RPI 667

Carta-patente expirada

#21.1

Patente extinta em 20/06/98

07/01/2008

RPI 1956

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