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Official data from INPI

SEM TITULO

Em AnáliseInvention Patent

Application data

Number

PI8004848

Type

Invention Patent

Filing

08/01/1980

Publication

-

Progress at the INPI

  1. Filing08/01/80
  2. Publication
  3. Examination
  4. Allowance12/11/84
  5. Grant06/25/85
  6. Expired09/19/95

The letters patent expired on 09/19/1995: 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: 02/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

De Nora Permelec S.P.A

IT

See this company's full portfolio

Inventors

D. O. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

02/21/1989

RPI 957

Concessão da patente

#16.1

06/25/1985

RPI 766

Notificação para pagamento de retribuição

#13.1

04/09/1985

RPI 755

Deferimento

#9.1

12/11/1984

RPI 738

Republicação - classificação IPC

#15.11

08/07/1984

RPI 720

Exigência - art. 36 da LPI

#6.1

03/07/1984

RPI 698

Carta-patente expirada

#21.1

09/19/1995

RPI 1294

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