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Official data from INPI

CONJUNTO DE DIVISOR E PROCESSO DE REGULACAO RESPECTIVA

ConcedidaInvention Patent

Application data

Number

PI7800977

Type

Invention Patent

Filing

02/17/1977

Publication

-

Progress at the INPI

  1. Filing02/17/77
  2. Publication
  3. Examination
  4. Allowance03/22/83
  5. Grant11/29/83
  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: 11/29/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MINERAL DEPOSITS LTD

Inventors

G. P. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/29/1983

RPI 684

Notificação para pagamento de retribuição

#13.1

08/02/1983

RPI 667

Deferimento

#9.1

03/22/1983

RPI 648

Exigência - art. 36 da LPI

#6.1

07/27/1982

RPI 614

Exigência - art. 36 da LPI

#6.1

01/12/1982

RPI 586

Carta-patente expirada

#21.1

07/20/1993

RPI 1181

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