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Official data from INPI

reator axial-radial para síntese heterogênea.

ConcedidaInvention Patent

Application data

Number

PI8004275

Type

Invention Patent

Filing

07/10/1980

Publication

-

Progress at the INPI

  1. Filing07/10/80
  2. Publication
  3. Examination03/16/82
  4. Allowance12/26/84
  5. Grant08/27/85
  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: 08/27/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Ammonia Casale S.A. e Umberto Zardi.

CH

Inventors

U. Z. (pessoa física)

Technical data

Priority claims

IT

22701 A/80 · 06/11/1980

IT

24334 A/79 · 07/13/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/27/1985

RPI 775

Notificação para pagamento de retribuição

#13.1

04/16/1985

RPI 756

Republicação - classificação IPC

#15.11

04/16/1985

RPI 756

Deferimento

#9.1

12/26/1984

RPI 740

Exigência - art. 36 da LPI

#6.1

01/31/1984

RPI 693

6.2

09/21/1982

RPI 622

Solicitação de exame técnico

#4.1

03/16/1982

RPI 595

Carta-patente expirada

#21.1

09/19/1995

RPI 1294

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