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Official data from INPI

APERFEIÇOAMENTO EM DISPOSITIVO PARA CORTAR EM TUBOS OU VERGALHÕES.

ConcedidaUtility Model

Application data

Number

MU6100402

Type

Utility Model

Filing

03/31/1981

Publication

11/09/1982

Progress at the INPI

  1. Filing03/31/81
  2. Publication11/09/82
  3. Examination03/01/83
  4. Allowance08/21/84
  5. Grant04/30/85
  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.

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Latest action published by the INPI: 04/30/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Companhia Hansen Industrial

SC, BR

See this company's full portfolio

Inventors

H. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/30/1985

RPI 758

Notificação para pagamento de retribuição

#13.1

12/11/1984

RPI 738

Deferimento

#9.1

08/21/1984

RPI 722

Exigência - art. 36 da LPI

#6.1

03/07/1984

RPI 698

Solicitação de exame técnico

#4.1

03/01/1983

RPI 645

Publicação do pedido de patente

#3.1

11/09/1982

RPI 629

Carta-patente expirada

#21.1

12/07/1993

RPI 1201

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