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Official data from INPI

APARELHO PARA A MANUTENÇÃO EM SUSPENSÃO DE PRODUTOS SÓLIDOS E PROCESSO DE UTILIZAÇÃO DO MESMO.

ConcedidaInvention Patent

Application data

Number

PI7805936

Type

Invention Patent

Filing

09/12/1978

Publication

-

Progress at the INPI

  1. Filing09/12/78
  2. Publication
  3. Examination
  4. Allowance04/05/83
  5. Grant10/25/83
  6. Expired05/03/94

The letters patent expired on 05/03/1994: 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: 10/25/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ALSTHOM-ATLANTIQUE

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Inventors

C. E. (pessoa física)

Technical data

IPC Classification

Priority claims

FR

77 27 596 · 09/13/1977

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/25/1983

RPI 679

Notificação para pagamento de retribuição

#13.1

08/30/1983

RPI 671

Deferimento

#9.1

04/05/1983

RPI 650

Exigência - art. 36 da LPI

#6.1

07/13/1982

RPI 612

6.2

12/22/1981

RPI 583

Carta-patente expirada

#21.1

05/03/1994

RPI 1222

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