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Official data from INPI

INDICADOR DE NÍVEL DE ÁGUA COM MOSTRADOR DE LEITURA REMOTA E LOCAL

ConcedidaInvention Patent

Application data

Number

PI8201624

Type

Invention Patent

Filing

03/23/1982

Publication

02/16/1983

Progress at the INPI

  1. Filing03/23/82
  2. Publication02/16/83
  3. Examination03/05/85
  4. Allowance04/28/87
  5. Grant09/29/87
  6. Expired07/01/08

The letters patent expired on 07/01/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 09/29/1987. 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. B. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

06/245.871 · 03/23/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/29/1987

RPI 884

Deferimento

#9.1

04/28/1987

RPI 862

Exigência - art. 36 da LPI

#6.1

05/27/1986

RPI 814

Exigência - art. 36 da LPI

#6.1

09/10/1985

RPI 777

Solicitação de exame técnico

#4.1

03/05/1985

RPI 750

Publicação do pedido de patente

#3.1

02/16/1983

RPI 643

Pedido de patente depositado

#2.1

05/11/1982

RPI 603

Carta-patente expirada

#21.1

Patente extinta em 23/03/97

07/01/2008

RPI 1956

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