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Official data from INPI

PROCESSO NO QUAL UM METAL FUNDIDO DEVE SER REVESTIDO EM PELO MENOS UMA SUPERFÍCIE DE METAL SÓLIDO; E PROCESSO DE JUNÇÃO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9006515

Type

Invention Patent

Filing

12/20/1990

Publication

10/01/1991

Progress at the INPI

  1. Filing12/20/90
  2. Publication10/01/91
  3. Examination03/23/93
  4. Allowance11/03/99
  5. Grant05/16/00
  6. Expired05/28/13

The letters patent expired on 05/28/2013: 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: 05/28/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Praxair Technology, Inc.

US

Union Carbide Industrial Gases Technology Corporation

US

See this company's full portfolio

Inventors

M. N. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

456.729 · 12/26/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 20/12/2010

05/28/2013

RPI 2212

Concessão da patente

#16.1

05/16/2000

RPI 1532

Deferimento

#9.1

11/03/1999

RPI 1504

Exigência - art. 36 da LPI

#6.1

05/11/1999

RPI 1479

Exigência - art. 36 da LPI

#6.1

08/05/1997

RPI 1392

6.5

07/16/1996

RPI 1337

6.2

03/19/1996

RPI 1320

14.4

06/15/1993

RPI 1176

14.7

06/15/1993

RPI 1176

Solicitação de exame técnico

#4.1

03/23/1993

RPI 1164

Publicação do pedido de patente

#3.1

10/01/1991

RPI 1087

Pedido de patente depositado

#2.1

06/11/1991

RPI 1071

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