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Official data from INPI

PROCESSO PARA PRODUÇÃO DE PÓ DE METAL E PÓ DE METAL ASSIM PRODUZIDO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9002518

Type

Invention Patent

Filing

05/29/1990

Publication

08/13/1991

Progress at the INPI

  1. Filing05/29/90
  2. Publication08/13/91
  3. Examination08/24/93
  4. Allowance11/23/99
  5. Grant05/16/00
  6. Expired01/15/13

The letters patent expired on 01/15/2013: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 01/15/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. C. (pessoa física)

US

See this company's full portfolio

Inventors

P. K. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

371,618 · 06/26/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 29/05/2010

01/15/2013

RPI 2193

Concessão da patente

#16.1

05/16/2000

RPI 1532

Deferimento

#9.1

11/23/1999

RPI 1507

6.9

Anulada a publicação na RPI nº 1427 por ter sido indevida.

05/05/1998

RPI 1428

Exigência - art. 36 da LPI

#6.1

04/28/1998

RPI 1427

Exigência - art. 36 da LPI

#6.1

04/22/1998

RPI 1426

Solicitação de exame técnico

#4.1

08/24/1993

RPI 1186

Publicação do pedido de patente

#3.1

08/13/1991

RPI 1080

Pedido de patente depositado

#2.1

10/09/1990

RPI 1036

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