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Official data from INPI

DISPOSITIVO E PROCESSO DE VEDAÇÃO À VÁCUO PARA TUBULAÇÃO ISOLADA DE INJEÇÃO DE VAPOR

DeferidaInvention Patent

Application data

Number

PI8603210

Type

Invention Patent

Filing

07/09/1986

Publication

04/22/1987

Progress at the INPI

  1. Filing07/09/86
  2. Publication04/22/87
  3. Examination11/08/88
  4. Allowance12/12/89
  5. Grant06/26/90
  6. Terminated10/03/95

The patent was granted on 06/26/1990 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: 12/12/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Babcock & Wilcox Company

US

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Inventors

C. P. (pessoa física)

US

J. M. (pessoa física)

US

L. I. (pessoa física)

US

P. A. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

776.254 · 09/15/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

12/12/1989

RPI 999

Solicitação de exame técnico

#4.1

11/08/1988

RPI 942

Publicação do pedido de patente

#3.1

04/22/1987

RPI 861

Pedido de patente depositado

#2.1

12/30/1986

RPI 845

Anuidade - prazo legal encerrado

#18.2

10/03/1995

RPI 1296

Concessão da patente

#16.1

06/26/1990

RPI 1024

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