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Official data from INPI

DISPOSITIVO PARA DIVIDIR A SUPERFICIE LIVRE DE UMA CARGA LIQUIDA EM UM NAVIO

ConcedidaInvention Patent

Application data

Number

PI7902642

Type

Invention Patent

Filing

04/28/1978

Publication

-

Progress at the INPI

  1. Filing04/28/78
  2. Publication
  3. Examination01/26/82
  4. Allowance04/19/83
  5. Grant11/29/83
  6. Expired06/21/94

The letters patent expired on 06/21/1994: 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: 11/29/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MARGARD GUNNAR [SE]

Inventors

M. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/29/1983

RPI 684

Notificação para pagamento de retribuição

#13.1

09/06/1983

RPI 672

14.11

07/05/1983

RPI 663

Deferimento

#9.1

04/19/1983

RPI 652

Exigência - art. 36 da LPI

#6.1

10/05/1982

RPI 624

Solicitação de exame técnico

#4.1

01/26/1982

RPI 588

Carta-patente expirada

#21.1

06/21/1994

RPI 1229

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