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Official data from INPI

APERFEIÇOAMENTOS EM DISPOSITIVOS DE SUSTENTAÇÃO E DE ACIONAMENTO DE ROLOS REFRATÁRIO NOS FORNOS DE ROLOS.

IndeferidaInvention Patent

Application data

Number

PI7904334

Type

Invention Patent

Filing

07/09/1979

Publication

-

Progress at the INPI

Under appeal
  1. Filing07/09/79
  2. Publication
  3. Examination06/28/83
  4. Refused03/12/85
  5. Grant
  6. In force

The application was refused by the INPI on 03/12/1985. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 03/12/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Welko Industriale S.p.A.

IT

Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

03/12/1985

RPI 751

Conhecimento de parecer técnico

#7.1

02/21/1984

RPI 696

Pedido de certificado de adição de invenção

#5.1

11/08/1983

RPI 681

Solicitação de exame técnico

#4.1

06/28/1983

RPI 662

14.1

02/08/1983

RPI 642

14.2

08/31/1982

RPI 619

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