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Official data from INPI

DISPOSITIVO APERFEICOADO PARA GERAR NO SOLO ONDAS ACUSTICAS TRANSVERSAIS

ConcedidaInvention Patent

Application data

Number

PI8303737

Type

Invention Patent

Filing

07/19/1982

Publication

02/21/1984

Progress at the INPI

  1. Filing07/19/82
  2. Publication02/21/84
  3. Examination05/27/86
  4. Allowance08/11/87
  5. Grant03/29/88
  6. Terminated05/02/95

The patent was granted on 03/29/1988 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: 03/29/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

INST FRANCAIS DU PETROLE [FR]

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Inventors

C. J. (pessoa física)

G. P. (pessoa física)

H. R. (pessoa física)

L. P. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/29/1988

RPI 910

Notificação para pagamento de retribuição

#13.1

12/01/1987

RPI 893

Deferimento

#9.1

08/11/1987

RPI 877

Solicitação de exame técnico

#4.1

05/27/1986

RPI 814

Publicação do pedido de patente

#3.1

02/21/1984

RPI 696

Pedido de patente depositado

#2.1

09/20/1983

RPI 674

Anuidade - prazo legal encerrado

#18.2

05/02/1995

RPI 1274

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