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Official data from INPI

PROCESSO PARA RECUPERAR VALORES DE FÓSFORO ELEMENTAR DE UMA LAMA

Em AnáliseInvention Patent

Application data

Number

PI8302464

Type

Invention Patent

Filing

05/11/1983

Publication

04/17/1984

Progress at the INPI

  1. Filing05/11/83
  2. Publication04/17/84
  3. Examination06/10/86
  4. Allowance04/25/89
  5. Grant02/06/90
  6. Terminated04/25/95

The patent was granted on 02/06/1990 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: 08/22/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Stauffer Chemical Company

US

See this company's full portfolio

Inventors

G. M. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

393.144 · 06/28/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

08/22/1989

RPI 983

Deferimento

#9.1

04/25/1989

RPI 966

Conhecimento de parecer técnico

#7.1

10/11/1988

RPI 938

6.2

03/04/1987

RPI 854

Solicitação de exame técnico

#4.1

06/10/1986

RPI 816

Publicação do pedido de patente

#3.1

04/17/1984

RPI 704

Pedido de patente depositado

#2.1

06/28/1983

RPI 662

Anuidade - prazo legal encerrado

#18.2

04/25/1995

RPI 1273

Concessão da patente

#16.1

02/06/1990

RPI 1005

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