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Official data from INPI

PROCESSO E DISPOSITIVO PARA O TRATAMENTO A VÁCUO DE METAIS

Arquivada/ExtintaInvention PatentPCT · DE1990000121

Application data

Number

PI9007161

Type

Invention Patent

Filing

02/20/1990

Publication

01/28/1992

PCT

DE1990000121

Progress at the INPI

  1. Filing02/20/90
  2. Publication01/28/92
  3. Examination01/05/93
  4. Allowance08/25/98
  5. Grant02/23/99
  6. Expired01/08/13

The letters patent expired on 01/08/2013: 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: 01/08/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. A. (pessoa física)

DE

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Inventors

R. D. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 39 06 340.2 · 02/24/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 20/02/2010

01/08/2013

RPI 2192

Concessão da patente

#16.1

02/23/1999

RPI 1468

Deferimento

#9.1

08/25/1998

RPI 1444

Exigência - art. 36 da LPI

#6.1

12/23/1997

RPI 1409

Solicitação de exame técnico

#4.1

01/05/1993

RPI 1153

Notificação de entrada na fase nacional - PCT

#1.3

01/28/1992

RPI 1104

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