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Official data from INPI

PROCESSO PARA PRETENSIONAR UM APARELHO TUBULAR; PROCESSO DE FABRICAÇÃO DE UM APARELHO TUBULAR E DE UM APARELHO TUBULAR PRETENSIONADO

ConcedidaInvention Patent

Application data

Number

PI8304587

Type

Invention Patent

Filing

08/25/1983

Publication

04/03/1984

Progress at the INPI

  1. Filing08/25/83
  2. Publication04/03/84
  3. Examination03/25/86
  4. Allowance04/25/89
  5. Grant10/24/89
  6. Terminated05/02/95

The patent was granted on 10/24/1989 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: 10/24/1989. 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. M. (pessoa física)

US

R. H. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

413.284 · 08/31/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/24/1989

RPI 992

Notificação para pagamento de retribuição

#13.1

08/22/1989

RPI 983

Republicação - classificação IPC

#15.11

05/02/1989

RPI 967

Deferimento

#9.1

04/25/1989

RPI 966

Exigência - art. 36 da LPI

#6.1

09/13/1988

RPI 934

6.2

03/04/1987

RPI 854

Solicitação de exame técnico

#4.1

03/25/1986

RPI 805

Publicação do pedido de patente

#3.1

04/03/1984

RPI 702

Pedido de patente depositado

#2.1

11/01/1983

RPI 680

Anuidade - prazo legal encerrado

#18.2

05/02/1995

RPI 1274

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