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Official data from INPI

EMISSOR INFRA-VERMELHO PARA SECAGEM E AQUECIMENTO

Em AnáliseUtility Model

Application data

Number

MU6101168

Type

Utility Model

Filing

08/18/1981

Publication

03/29/1983

Progress at the INPI

  1. Filing08/18/81
  2. Publication03/29/83
  3. Examination10/18/83
  4. Allowance06/12/84
  5. Grant11/27/84
  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: 08/23/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

COOLI SERGIO [BR]

Inventors

C. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

08/23/1988

RPI 931

Concessão da patente

#16.1

11/27/1984

RPI 736

Notificação para pagamento de retribuição

#13.1

10/02/1984

RPI 728

Deferimento

#9.1

06/12/1984

RPI 712

Solicitação de exame técnico

#4.1

10/18/1983

RPI 678

Publicação do pedido de patente

#3.1

03/29/1983

RPI 649

Carta-patente expirada

#21.1

12/07/1993

RPI 1201

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