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Official data from INPI

CONJUNTO E FORNO PARA O AQUECIMENTO DE MATERIAL TERMOPLASTICO EM FUSAO PELO EFEITO JOULE

Em AnáliseInvention Patent

Application data

Number

PI7600278

Type

Invention Patent

Filing

02/18/1975

Publication

-

Progress at the INPI

  1. Filing02/18/75
  2. Publication
  3. Examination
  4. Allowance
  5. Grant05/25/82
  6. Terminated11/17/87

The patent was granted on 05/25/1982 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 11/17/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

OWENS CORNING FIBERGLASS CORP

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Inventors

F. M. (pessoa física)

M. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

11/17/1987

RPI 891

Concessão da patente

#16.1

05/25/1982

RPI 605

Concessão da patente

#16.1

03/30/1982

RPI 597

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