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Official data from INPI

CONJUNTO DE ELEMENTOS A SEREM UTILIZADOS PARA DERIVAÇÃO DE CONTACTOS SELECIONADOS.

ConcedidaInvention Patent

Application data

Number

PI8102641

Type

Invention Patent

Filing

04/29/1981

Publication

01/26/1982

Progress at the INPI

  1. Filing04/29/81
  2. Publication01/26/82
  3. Examination02/07/84
  4. Allowance08/07/84
  5. Grant02/26/85
  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.

Talk to a specialist

Latest action published by the INPI: 02/26/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. I. (pessoa física)

US

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Inventors

A. L. (pessoa física)

Technical data

IPC Classification

Priority claims

US

147.030 · 05/06/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/26/1985

RPI 749

Notificação para pagamento de retribuição

#13.1

12/11/1984

RPI 738

Deferimento

#9.1

08/07/1984

RPI 720

Solicitação de exame técnico

#4.1

02/07/1984

RPI 694

Publicação do pedido de patente

#3.1

01/26/1982

RPI 588

Carta-patente expirada

#21.1

10/01/1996

RPI 1348

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