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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE ABRASIVOS

Em AnáliseInvention Patent
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Application data

Number

PI8503632

Type

Invention Patent

Filing

07/31/1985

Publication

04/29/1986
View on INPI

Progress at the INPI

  1. Filing07/31/85
  2. Publication04/29/86
  3. Examination12/15/87
  4. Allowance10/08/91
  5. Grant06/30/92
  6. Expired07/15/08

The letters patent expired on 07/15/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 12/15/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

T. A. (pessoa física)

AT

Inventors

H. Z. (pessoa física)

AT

Technical data

IPC Classification

C09K 3/14

Priority claims

AT

A 2477/84 · 08/01/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

12/15/1987

RPI 895

Publicação do pedido de patente

#3.1

04/29/1986

RPI 810

Pedido de patente depositado

#2.1

10/01/1985

RPI 780

Carta-patente expirada

#21.1

Patente extinta em 31/07/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

06/30/1992

RPI 1126

Notificação para pagamento de retribuição

#13.1

02/11/1992

RPI 1106

Deferimento

#9.1

10/08/1991

RPI 1088

Exigência - art. 36 da LPI

#6.1

01/29/1991

RPI 1052

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