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Official data from INPI

PROCESSO DE OTIMIZAÇÃO DE LIMPEZA DE CALDEIRA COM IDENTIFICAÇÃO DA TAXA DE FULIGEM

Em AnáliseInvention Patent

Application data

Number

PI8404700

Type

Invention Patent

Filing

09/19/1984

Publication

08/13/1985

Progress at the INPI

  1. Filing09/19/84
  2. Publication08/13/85
  3. Examination12/17/85
  4. Allowance11/27/90
  5. Grant05/28/91
  6. Terminated06/27/95

The patent was granted on 05/28/1991 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 12/17/1985. 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

J. K. (pessoa física)

US

T. M. (pessoa física)

Technical data

IPC Classification

Priority claims

US

541.394 · 10/12/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

12/17/1985

RPI 791

Publicação do pedido de patente

#3.1

08/13/1985

RPI 773

Pedido de patente depositado

#2.1

11/27/1984

RPI 736

Anuidade - prazo legal encerrado

#18.2

06/27/1995

RPI 1282

Pedido de licença compulsória

#20.1

01/07/1992

RPI 1101

Pedido de licença compulsória

#20.1

12/31/1991

RPI 1100

Republicação - classificação IPC

#15.11

07/09/1991

RPI 1075

Concessão da patente

#16.1

05/28/1991

RPI 1069

Notificação para pagamento de retribuição

#13.1

03/12/1991

RPI 1058

Deferimento

#9.1

11/27/1990

RPI 1043

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