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Official data from INPI

PROCESSO PARA RECUPERAÇÃO DOS TEORES DE OURO E PRATA DE UMA SOLUÇÃO.

ConcedidaInvention Patent

Application data

Number

PI7905698

Type

Invention Patent

Filing

09/05/1979

Publication

-

Progress at the INPI

  1. Filing09/05/79
  2. Publication
  3. Examination
  4. Allowance07/10/84
  5. Grant01/29/85
  6. Terminated04/12/94

The patent was granted on 01/29/1985 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 01/29/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Anglo American Corporation Of South Africa Limited

ZA

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Inventors

D. R. (pessoa física)

V. V. (pessoa física)

Technical data

Priority claims

ZA

78/5147 · 09/11/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

01/29/1985

RPI 745

Notificação para pagamento de retribuição

#13.1

10/23/1984

RPI 731

Deferimento

#9.1

07/10/1984

RPI 716

Conhecimento de parecer técnico

#7.1

10/04/1983

RPI 676

6.2

03/01/1983

RPI 645

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: C22B 11/04; C22B 3/00.

03/27/2018

RPI 2464

Anuidade - prazo legal encerrado

#18.2

04/12/1994

RPI 1219

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