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Official data from INPI

PROCESSO PARA A SEPARAÇÃO DE CLOROSSILANAS

DeferidaInvention Patent

Application data

Number

PI8304667

Type

Invention Patent

Filing

08/29/1983

Publication

05/22/1984

Progress at the INPI

  1. Filing08/29/83
  2. Publication05/22/84
  3. Examination07/08/86
  4. Allowance09/05/89
  5. Grant03/20/90
  6. Terminated05/02/95

The patent was granted on 03/20/1990 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: 09/05/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

D. C. (pessoa física)

US

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Inventors

R. H. (pessoa física)

US

S. R. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

419.856 · 09/20/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

09/05/1989

RPI 985

Republicação - classificação IPC

#15.11

05/02/1989

RPI 967

Exigência - art. 36 da LPI

#6.1

01/31/1989

RPI 954

6.2

03/04/1987

RPI 854

Solicitação de exame técnico

#4.1

07/08/1986

RPI 820

Publicação do pedido de patente

#3.1

05/22/1984

RPI 709

Pedido de patente depositado

#2.1

11/01/1983

RPI 680

Anuidade - prazo legal encerrado

#18.2

05/02/1995

RPI 1274

Concessão da patente

#16.1

03/20/1990

RPI 1010

Notificação para pagamento de retribuição

#13.1

01/09/1990

RPI 1001

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