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Official data from INPI

APERFEICOAMENTO DO PROCESSO DE TRATAMENTO SUB-ZERO DE CILINDROS DE LAMINACAO DO ACO FORJADO(ROLL FREEZING)

Em AnáliseInvention Patent

Application data

Number

PI7802013

Type

Invention Patent

Filing

03/31/1978

Publication

-

Progress at the INPI

  1. Filing03/31/78
  2. Publication
  3. Examination
  4. Refused08/26/86
  5. Grant
  6. In force

The application was refused on 08/26/1986 and the appeal did not change the decision. The invention was never patented and the technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 04/28/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

LIQUID CARBONIC IND SA

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Inventors

No inventors listed.

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Republicação - classificação IPC

#15.11

04/28/1987

RPI 862

111

08/26/1986

RPI 827

Petição de recurso

#12.2

03/29/1983

RPI 649

Indeferimento

#9.2

04/13/1982

RPI 599

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