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Official data from INPI

PATILHA E PROCESSO DE FABRICACAO DA MESMA

ConcedidaInvention Patent

Application data

Number

PI7808553

Type

Invention Patent

Filing

12/29/1977

Publication

-

Progress at the INPI

  1. Filing12/29/77
  2. Publication
  3. Examination
  4. Allowance04/19/83
  5. Grant10/25/83
  6. Expired05/24/94

The letters patent expired on 05/24/1994: 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

REYNOLDS METALS CO

Inventors

C. D. (pessoa física)

Technical data

IPC Classification

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

09/06/1983

RPI 672

Deferimento

#9.1

04/19/1983

RPI 652

11.7

12/14/1982

RPI 634

Arquivamento - Art. 36 §1° da LPI

#11.2

09/08/1982

RPI 620

Exigência - art. 36 da LPI

#6.1

02/02/1982

RPI 589

Carta-patente expirada

#21.1

05/24/1994

RPI 1225

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