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Official data from INPI

VEDANTE ANTI-RUIDO

Em AnáliseUtility Model

Application data

Number

MU6101819

Type

Utility Model

Filing

12/14/1981

Publication

09/06/1983

Progress at the INPI

  1. Filing12/14/81
  2. Publication09/06/83
  3. Examination06/12/84
  4. Allowance04/16/85
  5. Grant10/29/85
  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: 09/23/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

LEMOS JOAO FRANCISCO GINJO [BR]

Inventors

G. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

09/23/1986

RPI 831

Concessão da patente

#16.1

10/29/1985

RPI 784

Notificação para pagamento de retribuição

#13.1

08/06/1985

RPI 772

Deferimento

#9.1

04/16/1985

RPI 756

Solicitação de exame técnico

#4.1

06/12/1984

RPI 712

Publicação do pedido de patente

#3.1

09/06/1983

RPI 672

Pedido de patente depositado

#2.1

02/09/1982

RPI 590

Carta-patente expirada

#21.1

12/07/1993

RPI 1201

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