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Official data from INPI

FONTE DE ENERGIA PARA SOLDAGEM A ARCO,CIRCUITO DE CONTROLE DE DISPARO E CIRCUITO DE PROTECAO

Em AnáliseInvention Patent

Application data

Number

PI7608142

Type

Invention Patent

Filing

12/05/1975

Publication

-

Progress at the INPI

  1. Filing12/05/75
  2. Publication
  3. Examination
  4. Allowance
  5. Grant12/29/81
  6. Terminated11/24/87

The patent was granted on 12/29/1981 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: 11/24/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

LINCOLN ELECTRIC CO

Inventors

B. D. (pessoa física)

C. J. (pessoa física)

G. K. (pessoa física)

O. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

11/24/1987

RPI 892

Concessão da patente

#16.1

12/29/1981

RPI 584

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