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Official data from INPI

PROCESSO PARA PREPARAÇÃO DE UMA DISPERSÃO AQUOSA DE PARTÍCULAS DE MINÉRIO DE VERMICULITA OU OUTRO MINERAL DE SILICATO EM CAMADAS QUE PODE SER DESLAMINADO PARA PRODUZIR LAMELAS

PublicadaInvention Patent

Application data

Number

PI8801251

Type

Invention Patent

Filing

03/18/1988

Publication

10/25/1988

Progress at the INPI

  1. Filing03/18/88
  2. Publication10/25/88
  3. Examination02/19/91
  4. Allowance10/04/94
  5. Abandoned
  6. In force

The application was allowed on 10/04/1994 but abandoned for failure to pay the grant fee (art. 38 of the Brazilian IP Act). The letters patent were never issued.

Talk to a specialist

Latest action published by the INPI: 10/25/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

H. I. (pessoa física)

US

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Inventors

L. N. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

027.571 · 03/19/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

10/25/1988

RPI 940

Pedido de patente depositado

#2.1

06/28/1988

RPI 923

Arquivamento - Art. 38 §2° da LPI

#11.4

09/26/1995

RPI 1295

Notificação para pagamento de retribuição

#13.1

02/07/1995

RPI 1262

Deferimento

#9.1

10/04/1994

RPI 1244

Solicitação de exame técnico

#4.1

02/19/1991

RPI 1055

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