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Official data from INPI

PROCESSO PARA FORMAR UMA TUBAGEM PARA UM TUBO BOURDON, PROCESSO PARA FABRICAR UM TUBO BOURDON, TUBO BOURDON, TUBAGEM PARA UM TUBO BOURDON E MANÔMETRO.

ConcedidaInvention Patent

Application data

Number

PI8105612

Type

Invention Patent

Filing

09/02/1981

Publication

05/18/1982

Progress at the INPI

  1. Filing09/02/81
  2. Publication05/18/82
  3. Examination02/14/84
  4. Allowance07/08/86
  5. Grant03/17/87
  6. Terminated09/25/90

The patent was granted on 03/17/1987 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: 03/17/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Dresser Industries, Inc

US

See this company's full portfolio

Inventors

C. J. (pessoa física)

Technical data

IPC Classification

Priority claims

US

184.864 · 09/08/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/17/1987

RPI 856

Notificação para pagamento de retribuição

#13.1

11/04/1986

RPI 837

Deferimento

#9.1

07/08/1986

RPI 820

Exigência - art. 36 da LPI

#6.1

05/14/1985

RPI 760

Republicação - classificação IPC

#15.11

04/30/1985

RPI 758

Exigência - art. 36 da LPI

#6.1

11/27/1984

RPI 736

Solicitação de exame técnico

#4.1

02/14/1984

RPI 695

Publicação do pedido de patente

#3.1

05/18/1982

RPI 604

Pedido de patente depositado

#2.1

10/20/1981

RPI 574

Anuidade - prazo legal encerrado

#18.2

09/25/1990

RPI 1034

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