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Official data from INPI

PROCESSO PARA COMBUSTÃO DE LIXO MOLHADO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9006450

Type

Invention Patent

Filing

12/18/1990

Publication

10/01/1991

Progress at the INPI

  1. Filing12/18/90
  2. Publication10/01/91
  3. Examination03/23/93
  4. Allowance05/31/94
  5. Grant12/27/94
  6. Expired06/08/10

The letters patent expired on 06/08/2010: 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: 06/08/2010. 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. H. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

454.452 · 12/21/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 18/12/2005

06/08/2010

RPI 2057

Concessão da patente

#16.1

12/27/1994

RPI 1256

Notificação para pagamento de retribuição

#13.1

10/04/1994

RPI 1244

Deferimento

#9.1

05/31/1994

RPI 1226

14.11

09/08/1993

RPI 1188

14.4

06/29/1993

RPI 1178

14.7

06/29/1993

RPI 1178

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

06/04/1991

RPI 1070

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