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Official data from INPI

Processo de preparação de aglomerados de alumina e aglomerados de alumina.

ConcedidaInvention Patent

Application data

Number

PI8108329

Type

Invention Patent

Filing

12/22/1981

Publication

10/05/1982

Progress at the INPI

  1. Filing12/22/81
  2. Publication10/05/82
  3. Examination04/05/83
  4. Allowance07/08/86
  5. Grant02/03/87
  6. In force12/22/01

The patent was granted on 02/03/1987 and is in force until 12/22/2001. Until then, no one may make, use or sell the invention in Brazil without the owner's authorisation.

Protection valid until:12/22/2001

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Latest action published by the INPI: 02/03/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Rhone-Poulenc Industries

FR

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Inventors

D. T. (pessoa física)

L. J. (pessoa física)

P. R. (pessoa física)

Technical data

IPC Classification

Priority claims

FR

80 27299 · 12/23/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/03/1987

RPI 850

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

01/02/1985

RPI 741

Pedido de certificado de adição de invenção

#5.1

08/23/1983

RPI 670

Solicitação de exame técnico

#4.1

04/05/1983

RPI 650

Publicação do pedido de patente

#3.1

10/05/1982

RPI 624

Pedido de patente depositado

#2.1

02/16/1982

RPI 591

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