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Official data from INPI

DISPOSITIVO DE AMOSTRAGEM PARA METAIS FUNDIDOS.

ConcedidaInvention Patent

Application data

Number

PI8305337

Type

Invention Patent

Filing

09/28/1983

Publication

05/07/1985

Progress at the INPI

  1. Filing09/28/83
  2. Publication05/07/85
  3. Examination09/03/85
  4. Allowance03/31/87
  5. Grant11/24/87
  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: 11/24/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Electro-Nite

BE

Inventors

P. J. (pessoa física)

T. L. (pessoa física)

Technical data

IPC Classification

Priority claims

BE

2/59850 · 09/29/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/24/1987

RPI 892

Notificação para pagamento de retribuição

#13.1

08/11/1987

RPI 877

Deferimento

#9.1

03/31/1987

RPI 858

Retificação

#15.6

02/17/1987

RPI 852

Alteração de numeração

#15.1

11/25/1986

RPI 840

8.1

08/26/1986

RPI 827

Solicitação de exame técnico

#4.1

09/03/1985

RPI 776

Publicação do pedido de patente

#3.1

05/07/1985

RPI 759

Pedido de patente depositado

#2.1

11/29/1983

RPI 684

Carta-patente expirada

#21.1

Patente extinta em 28/09/98

07/01/2008

RPI 1956

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