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Official data from INPI

PROCESSO TÉRMICO PARA INCINERAÇÃO DE MATERIAIS ORGÂNICOS

Arquivada/ExtintaInvention Patent

Application data

Number

PI8905413

Type

Invention Patent

Filing

10/19/1989

Publication

04/23/1991

Progress at the INPI

  1. Filing10/19/89
  2. Publication04/23/91
  3. Examination07/13/93
  4. Allowance03/08/94
  5. Grant12/27/94
  6. Expired12/29/09

The letters patent expired on 12/29/2009: 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: 12/29/2009. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Umwelt-Equipamentos de Tecnologia Ambiental e Energéticos Ltda

RS, BR

See this company's full portfolio

Inventors

W. K. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 19/10/2004

12/29/2009

RPI 2034

Cessão de direito de exploração

#22.1

06/13/1995

RPI 1280

Concessão da patente

#16.1

12/27/1994

RPI 1256

Notificação para pagamento de retribuição

#13.1

06/21/1994

RPI 1229

Deferimento

#9.1

03/08/1994

RPI 1214

Solicitação de exame técnico

#4.1

07/13/1993

RPI 1180

Publicação do pedido de patente

#3.1

04/23/1991

RPI 1064

Pedido de patente depositado

#2.1

12/04/1990

RPI 1044

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