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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8103926

Type

Invention Patent

Filing

06/22/1981

Publication

01/25/1983

Progress at the INPI

  1. Filing06/22/81
  2. Publication01/25/83
  3. Examination08/02/83
  4. Allowance06/26/84
  5. Grant01/29/85
  6. Expired10/08/96

The letters patent expired on 10/08/1996: 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: 01/29/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Sprind - Metalúrgica, Indústria e Comércio Ltda.

RJ, BR

Inventors

V. M. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

01/29/1985

RPI 745

Notificação para pagamento de retribuição

#13.1

10/23/1984

RPI 731

Deferimento

#9.1

06/26/1984

RPI 714

Exigência - art. 36 da LPI

#6.1

01/24/1984

RPI 692

Solicitação de exame técnico

#4.1

08/02/1983

RPI 667

Publicação do pedido de patente

#3.1

01/25/1983

RPI 640

Carta-patente expirada

#21.1

10/08/1996

RPI 1349

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