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Official data from INPI

MÉTODO PARA CONTROLAR A POSIÇÃO VERTICAL DE UM CORPO EM ÁGUA

PublicadaInvention Patent

Application data

Number

PI8800695

Type

Invention Patent

Filing

02/12/1988

Publication

10/04/1988

Progress at the INPI

  1. Filing02/12/88
  2. Publication10/04/88
  3. Examination01/08/91
  4. Allowance03/31/92
  5. Grant01/26/93
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 10/04/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

H. V. (pessoa física)

NL

Inventors

H. H. (pessoa física)

NL

Technical data

IPC Classification

Priority claims

GB

8703223 · 02/12/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

10/04/1988

RPI 937

Pedido de patente depositado

#2.1

05/10/1988

RPI 916

Carta-patente expirada

#21.1

Patente extinta em 12/02/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

01/26/1993

RPI 1156

Deferimento

#9.1

03/31/1992

RPI 1113

Solicitação de exame técnico

#4.1

01/08/1991

RPI 1049

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