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Official data from INPI

SEM TITULO

Em AnáliseInvention Patent

Application data

Number

PI7808769

Type

Invention Patent

Filing

08/22/1978

Publication

-

Progress at the INPI

  1. Filing08/22/78
  2. Publication
  3. Examination
  4. Allowance01/24/84
  5. Grant08/28/84
  6. Expired05/31/94

The letters patent expired on 05/31/1994: 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: 07/14/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. D. (pessoa física)

Inventors

E. B. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Cessão de direito de exploração

#22.1

07/14/1987

RPI 873

Concessão da patente

#16.1

08/28/1984

RPI 723

Notificação para pagamento de retribuição

#13.1

05/02/1984

RPI 706

Deferimento

#9.1

01/24/1984

RPI 692

8.1

10/11/1983

RPI 677

Exigência - art. 36 da LPI

#6.1

03/01/1983

RPI 645

4.2.3

08/03/1982

RPI 615

Carta-patente expirada

#21.1

05/31/1994

RPI 1226

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