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Official data from INPI

QUEIMADOR PARA COMBUSTIVEIS PULVEREOS,GASOSOS E/OU LIQUIDOS

ConcedidaInvention Patent

Application data

Number

PI8305930

Type

Invention Patent

Filing

02/17/1982

Publication

01/10/1984

Progress at the INPI

  1. Filing02/17/82
  2. Publication01/10/84
  3. Examination10/29/85
  4. Allowance08/11/87
  5. Grant03/29/88
  6. Expired08/19/08

The letters patent expired on 08/19/2008: 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: 03/29/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

KOERTING HANNOVER AG [DE]

Inventors

E. [. (pessoa física)

H. [. (pessoa física)

S. [. (pessoa física)

S. (pessoa física)

W. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/29/1988

RPI 910

Notificação para pagamento de retribuição

#13.1

12/01/1987

RPI 893

Deferimento

#9.1

08/11/1987

RPI 877

Exigência - art. 36 da LPI

#6.1

10/07/1986

RPI 833

Solicitação de exame técnico

#4.1

10/29/1985

RPI 784

Notificação de entrada na fase nacional - PCT

#1.3

01/10/1984

RPI 690

Carta-patente expirada

#21.1

Patente extinta em 15/02/98

08/19/2008

RPI 1963

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