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Official data from INPI

APARELHO DE COMBUSTÃO A LEITO FLUIDIZADO E PROCESSO DE COMBUSTÃO A LEITO FLUIDIZADO.

ConcedidaInvention Patent

Application data

Number

PI7904639

Type

Invention Patent

Filing

07/20/1979

Publication

-

Progress at the INPI

  1. Filing07/20/79
  2. Publication
  3. Examination
  4. Allowance08/30/83
  5. Grant03/27/84
  6. Expired04/18/95

The letters patent expired on 04/18/1995: 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: 03/27/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Combustion Power Company, Inc.

US

Inventors

B. W. (pessoa física)

G. G. (pessoa física)

M. D. (pessoa física)

O. M. (pessoa física)

P. F. (pessoa física)

Technical data

IPC Classification

Priority claims

US

926.914 · 07/21/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/27/1984

RPI 701

Notificação para pagamento de retribuição

#13.1

12/20/1983

RPI 687

Deferimento

#9.1

08/30/1983

RPI 671

Exigência - art. 36 da LPI

#6.1

02/22/1983

RPI 644

6.2

04/06/1982

RPI 598

Carta-patente expirada

#21.1

04/18/1995

RPI 1272

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