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Official data from INPI

CADEIA DE ARGOLAS

Em AnáliseInvention Patent

Application data

Number

PI7604789

Type

Invention Patent

Filing

07/25/1975

Publication

-

Progress at the INPI

  1. Filing07/25/75
  2. Publication
  3. Examination
  4. Allowance
  5. Grant06/29/82
  6. Terminated01/13/87

The patent was granted on 06/29/1982 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 01/13/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

RUD KETTEN RIEGER & DIETZ

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Inventors

W. E. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

01/13/1987

RPI 847

Cessão de direito de exploração

#22.1

08/05/1986

RPI 824

20.4

08/16/1983

RPI 669

Concessão da patente

#16.1

06/29/1982

RPI 610

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