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Official data from INPI

PROCESSO DE FUNDICAO CONTINUA DE FERROCROMO

ConcedidaInvention Patent

Application data

Number

PI7708326

Type

Invention Patent

Filing

12/15/1976

Publication

-

Progress at the INPI

  1. Filing12/15/76
  2. Publication
  3. Examination
  4. Allowance09/21/82
  5. Grant04/26/83
  6. Expired07/20/93

The letters patent expired on 07/20/1993: 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: 04/26/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DEMAG AG

See this company's full portfolio

Inventors

R. G. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/26/1983

RPI 653

Notificação para pagamento de retribuição

#13.1

01/25/1983

RPI 640

Deferimento

#9.1

09/21/1982

RPI 622

6.4

01/05/1982

RPI 585

15.0

11/24/1981

RPI 579

Exigência - art. 36 da LPI

#6.1

10/13/1981

RPI 573

Carta-patente expirada

#21.1

07/20/1993

RPI 1181

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