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Official data from INPI

DISPOSITIVO DE APOIO INTERPOSTO ENTRE UMA ESTRUTURA E SUA FUNDACAO

ConcedidaInvention Patent

Application data

Number

PI7903404

Type

Invention Patent

Filing

12/01/1978

Publication

-

Progress at the INPI

  1. Filing12/01/78
  2. Publication
  3. Examination
  4. Allowance08/02/83
  5. Grant02/28/84
  6. Expired07/26/94

The letters patent expired on 07/26/1994: 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: 02/28/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

F. S. (pessoa física)

Inventors

P. M. (pessoa física)

X. P. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/28/1984

RPI 697

Notificação para pagamento de retribuição

#13.1

11/22/1983

RPI 683

Deferimento

#9.1

08/02/1983

RPI 667

Carta-patente expirada

#21.1

07/26/1994

RPI 1234

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