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Official data from INPI

OXIGENADOR DE SANGUE

Em AnáliseInvention Patent

Application data

Number

PI7801375

Type

Invention Patent

Filing

02/24/1978

Publication

-

Progress at the INPI

  1. Filing02/24/78
  2. Publication
  3. Examination
  4. Allowance06/01/82
  5. Grant
  6. Expired11/30/93

The letters patent expired on 11/30/1993: 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: 09/21/1982. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

B. M. (pessoa física)

Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

09/21/1982

RPI 622

Deferimento

#9.1

06/01/1982

RPI 606

Exigência - art. 36 da LPI

#6.1

11/10/1981

RPI 577

Carta-patente expirada

#21.1

11/30/1993

RPI 1200

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