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Official data from INPI

MONITOR DE OPACIDADE

ConcedidaInvention Patent

Application data

Number

PI8104461

Type

Invention Patent

Filing

08/28/1980

Publication

08/31/1982

Progress at the INPI

  1. Filing08/28/80
  2. Publication08/31/82
  3. Examination04/19/83
  4. Allowance07/10/84
  5. Grant11/27/84
  6. Terminated09/13/94

The patent was granted on 11/27/1984 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 11/27/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BABCOCK & WILCOX CO [US]

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Inventors

B. L. (pessoa física)

H. R. (pessoa física)

Z. L. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/27/1984

RPI 736

Deferimento

#9.1

07/10/1984

RPI 716

Solicitação de exame técnico

#4.1

04/19/1983

RPI 652

Publicação do pedido de patente

#3.1

08/31/1982

RPI 619

Anuidade - prazo legal encerrado

#18.2

09/13/1994

RPI 1241

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