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Official data from INPI

SEM TITULO

ConcedidaUtility Model

Application data

Number

MU6101957

Type

Utility Model

Filing

07/01/1981

Publication

03/16/1982

Progress at the INPI

  1. Filing07/01/81
  2. Publication03/16/82
  3. Examination07/13/82
  4. Allowance02/17/87
  5. Grant09/29/87
  6. Expired12/07/93

The letters patent expired on 12/07/1993: 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: 09/29/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. D. (pessoa física)

Inventors

E. B. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/29/1987

RPI 884

Deferimento

#9.1

02/17/1987

RPI 852

15.10

10/29/1986

RPI 836

Exigência - art. 36 da LPI

#6.1

03/04/1986

RPI 802

Conhecimento de parecer técnico

#7.1

11/06/1984

RPI 733

Solicitação de exame técnico

#4.1

07/13/1982

RPI 612

Publicação do pedido de patente

#3.1

03/16/1982

RPI 595

Carta-patente expirada

#21.1

12/07/1993

RPI 1201

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