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Official data from INPI

PROCESSO PARA TRATAR GRÃOS DE DIAMANTE E FERRAMENTA DE DIAMANTE.

PublicadaInvention Patent

Application data

Number

PI8703905

Type

Invention Patent

Filing

07/29/1987

Publication

04/05/1988

Progress at the INPI

  1. Filing07/29/87
  2. Publication04/05/88
  3. Examination11/20/90
  4. Allowance05/04/93
  5. Grant09/28/93
  6. Terminated06/25/96

The patent was granted on 09/28/1993 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: 04/05/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Ernst Winter & Sohn (Gmbh & Co.)

DE

Ernst Winter & Sohn (GMBH & Co.)

Inventors

D. B. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 36 25 743.5 · 07/30/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

04/05/1988

RPI 911

Pedido de patente depositado

#2.1

10/06/1987

RPI 885

Anuidade - prazo legal encerrado

#18.2

06/25/1996

RPI 1334

Concessão da patente

#16.1

09/28/1993

RPI 1191

Deferimento

#9.1

05/04/1993

RPI 1170

Exigência - art. 36 da LPI

#6.1

10/27/1992

RPI 1143

Solicitação de exame técnico

#4.1

11/20/1990

RPI 1042

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