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Official data from INPI

APARELHO E PROCESSO PARA O CONTROLE E O TRANSPORTE DE MATERIAL EM PARTÍCULAS DE UMA CHAMINÉ DE EQUILÍBRIO EM UMA CALDEIRA DE LEITO FLUIDIZADO CIRCULANTE

Prazo de SigiloInvention Patent

Application data

Number

PI8902747

Type

Invention Patent

Filing

06/09/1989

Publication

09/18/1990

Progress at the INPI

  1. Filing06/09/89
  2. Publication
  3. Examination
  4. Allowance
  5. Grant
  6. In force

The application was filed at the INPI on 06/09/1989. It awaits formal examination and publication in the RPI gazette.

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Latest action published by the INPI: 07/18/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Babcock & Wilcox Company

US

See this company's full portfolio

Inventors

D. W. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

242.656 · 09/12/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

07/18/1989

RPI 978

Retificação

#15.3

10/03/1995

RPI 1296

Pedido de certificado de adição de invenção

#5.1

07/16/1991

RPI 1076

Solicitação de exame técnico

#4.1

03/19/1991

RPI 1059

Publicação do pedido de patente

#3.1

09/18/1990

RPI 1033

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