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Official data from INPI

Processo para separação comtínua de anidrido de ácido maléico de gases de processo de oxidação caralítica de hidrocarbonetos na fase vapor.

ConcedidaInvention Patent

Application data

Number

PI8001667

Type

Invention Patent

Filing

03/20/1980

Publication

-

Progress at the INPI

  1. Filing03/20/80
  2. Publication
  3. Examination09/14/82
  4. Allowance01/15/85
  5. Grant08/27/85
  6. In force03/20/00

The patent was granted on 08/27/1985 and is in force until 03/20/2000. Until then, no one may make, use or sell the invention in Brazil without the owner's authorisation.

Protection valid until:03/20/2000

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Latest action published by the INPI: 08/27/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Ftalital Prodotti Chimici Speciali S.P.A

Inventors

N. A. (pessoa física)

S. S. (pessoa física)

Technical data

IPC Classification

Priority claims

IT

48436 A/79 · 03/21/1979

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

07/09/1985

RPI 768

9.1.3

03/19/1985

RPI 752

Deferimento

#9.1

01/15/1985

RPI 743

Republicação - classificação IPC

#15.11

09/18/1984

RPI 726

14.11

07/10/1984

RPI 716

14.11

03/07/1984

RPI 698

Republicação - classificação IPC

#15.11

01/10/1984

RPI 690

14.4

12/20/1983

RPI 687

14.1

12/06/1983

RPI 685

Exigência - art. 36 da LPI

#6.1

08/09/1983

RPI 668

Solicitação de exame técnico

#4.1

09/14/1982

RPI 621

114

04/27/1993

RPI 1169

18.5

08/06/1991

RPI 1079

18.3

04/16/1991

RPI 1063

18.1

04/24/1990

RPI 1015

22.5

04/17/1990

RPI 1014

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