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Official data from INPI

SEM TITULO

Em AnáliseInvention Patent

Application data

Number

PI7403815

Type

Invention Patent

Filing

05/10/1974

Publication

-

Progress at the INPI

  1. Filing05/10/74
  2. Publication
  3. Examination
  4. Allowance
  5. Grant06/02/81
  6. Expired11/24/92

The letters patent expired on 11/24/1992: 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: 06/26/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Hauni-Werke Korber & Co. Kg.

US

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

06/26/1984

RPI 714

Concessão da patente

#16.1

06/02/1981

RPI 554

Carta-patente expirada

#21.1

11/24/1992

RPI 1147

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