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Official data from INPI

APERFEIÇOAMENTO EM UM FORRO PROTETOR PARA UM VASO PARA A MANUTENÇÃO, COM OU SEM REFINO, DE ALUMÍNIO FUNDIDO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9004491

Type

Invention Patent

Filing

09/10/1990

Publication

09/10/1991

Progress at the INPI

  1. Filing09/10/90
  2. Publication09/10/91
  3. Examination01/12/93
  4. Allowance04/22/98
  5. Grant11/24/98
  6. Expired01/29/13

The letters patent expired on 01/29/2013: 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: 01/29/2013. 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

J. P. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

406.277 · 09/12/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 10/09/2010

01/29/2013

RPI 2195

9.1.4

11/16/1999

RPI 1506

Concessão da patente

#16.1

11/24/1998

RPI 1455

Deferimento

#9.1

04/22/1998

RPI 1426

14.4

06/29/1993

RPI 1178

14.7

06/29/1993

RPI 1178

Solicitação de exame técnico

#4.1

01/12/1993

RPI 1154

Publicação do pedido de patente

#3.1

09/10/1991

RPI 1084

Pedido de patente depositado

#2.1

03/12/1991

RPI 1058

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