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Official data from INPI

PROCESSO E APARELHO PARA ACABAMENTO A FRIO DE METAIS

ConcedidaInvention Patent

Application data

Number

PI7905666

Type

Invention Patent

Filing

09/01/1978

Publication

-

Progress at the INPI

  1. Filing09/01/78
  2. Publication
  3. Examination
  4. Allowance01/24/84
  5. Grant07/31/84
  6. Expired04/25/95

The letters patent expired on 04/25/1995: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 07/31/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

LASALLE STEEL CO

Inventors

J. S. (pessoa física)

S. D. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/31/1984

RPI 719

Notificação para pagamento de retribuição

#13.1

05/02/1984

RPI 706

Deferimento

#9.1

01/24/1984

RPI 692

Exigência - art. 36 da LPI

#6.1

05/03/1983

RPI 654

Exigência - art. 36 da LPI

#6.1

08/31/1982

RPI 619

Carta-patente expirada

#21.1

04/25/1995

RPI 1273

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