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Official data from INPI

DECOMPOSIÇÃO CATALÍTICA DE HIPOCLORITO USANDO-SE ESPINÉLIOS DE ÓXIDOS DE COBALTO SUBSTITUÍDOS

Concessão AnuladaInvention Patent

Application data

Number

PI8201695

Type

Invention Patent

Filing

03/24/1982

Publication

11/08/1983

Progress at the INPI

  1. Filing03/24/82
  2. Publication02/16/83
  3. Examination06/12/84
  4. Allowance07/08/86
  5. Grant03/31/87
  6. Terminated02/11/92

The patent was granted on 03/31/1987 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: 12/15/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

THE DOW CHEMICAL COMPANY

US

See this company's full portfolio

Inventors

D. C. (pessoa física)

US

Technical data

Priority claims

US

334,791 · 12/28/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

16.3

12/15/1987

RPI 895

Concessão da patente

#16.1

03/31/1987

RPI 858

Notificação para pagamento de retribuição

#13.1

11/04/1986

RPI 837

Deferimento

#9.1

07/08/1986

RPI 820

Exigência - art. 36 da LPI

#6.1

05/07/1985

RPI 759

Solicitação de exame técnico

#4.1

06/12/1984

RPI 712

Publicação do pedido de patente

#3.1

11/08/1983

RPI 681

3.3

03/29/1983

RPI 649

Publicação do pedido de patente

#3.1

02/16/1983

RPI 643

Pedido de patente depositado

#2.1

05/11/1982

RPI 603

Anuidade - prazo legal encerrado

#18.2

02/11/1992

RPI 1106

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