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Official data from INPI

Aperfeiçoamento em um processo para a produção de aço silício eletromagnético; aço silício orientado segundo direções definidas pelas arestas da célula cúbica; e aço recrsitalizado primário.

Arquivada/ExtintaInvention Patent

Application data

Number

PI7703869

Type

Invention Patent

Filing

06/15/1977

Publication

-

Progress at the INPI

  1. Filing06/15/77
  2. Publication
  3. Abandoned
  4. Allowance
  5. Grant
  6. In force

The application was abandoned at the INPI. The case ended without a patent and the technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 02/17/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Allegheny Ludlum Industries INC

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Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

02/17/1987

RPI 852

8.1

04/15/1986

RPI 808

Exigência - art. 36 da LPI

#6.1

05/10/1983

RPI 655

15.0

10/27/1981

RPI 575

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