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Official data from INPI

PERFIL TUBULAR METALICO

Em AnáliseUtility Model

Application data

Number

MU6001543

Type

Utility Model

Filing

11/19/1980

Publication

-

Progress at the INPI

  1. Filing11/19/80
  2. Publication
  3. Examination02/16/82
  4. Allowance08/30/83
  5. Grant03/27/84
  6. Terminated10/10/89

The patent was granted on 03/27/1984 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 10/10/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

TUBONAL FERRO E ACO LTD

Inventors

C. B. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

10/10/1989

RPI 990

Concessão da patente

#16.1

03/27/1984

RPI 701

Notificação para pagamento de retribuição

#13.1

12/20/1983

RPI 687

Republicação - classificação IPC

#15.11

09/13/1983

RPI 673

Deferimento

#9.1

08/30/1983

RPI 671

Solicitação de exame técnico

#4.1

02/16/1982

RPI 591

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