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Official data from INPI

PROCESSO DE RECUPERAÇÃO DE VALORES DE FÓSFORO ELEMENTAR DE MATERIAL RESIDUAL CONTENDO FÓSFORO

Em AnáliseInvention Patent

Application data

Number

PI8404380

Type

Invention Patent

Filing

08/31/1984

Publication

07/30/1985

Progress at the INPI

  1. Filing08/31/84
  2. Publication07/30/85
  3. Examination08/11/87
  4. Allowance09/11/90
  5. Grant05/28/91
  6. Terminated06/20/95

The patent was granted on 05/28/1991 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: 05/30/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Stauffer Chemical Company.

US

See this company's full portfolio

Inventors

B. P. (pessoa física)

US

D. D. (pessoa física)

US

P. R. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

538.696 · 10/03/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Conhecimento de parecer técnico

#7.1

05/30/1989

RPI 971

6.2

07/26/1988

RPI 927

Solicitação de exame técnico

#4.1

08/11/1987

RPI 877

Publicação do pedido de patente

#3.1

07/30/1985

RPI 771

Pedido de patente depositado

#2.1

11/06/1984

RPI 733

Anuidade - prazo legal encerrado

#18.2

06/20/1995

RPI 1281

Concessão da patente

#16.1

05/28/1991

RPI 1069

Notificação para pagamento de retribuição

#13.1

12/26/1990

RPI 1047

Deferimento

#9.1

09/11/1990

RPI 1032

Exigência - art. 36 da LPI

#6.1

03/13/1990

RPI 1009

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