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Official data from INPI

SEM TITULO

ConcedidaInvention Patent
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Application data

Number

PI8003920

Type

Invention Patent

Filing

06/24/1980

Publication

-
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Progress at the INPI

  1. Filing06/24/80
  2. Publication
  3. Examination03/08/83
  4. Allowance08/12/86
  5. Grant04/28/87
  6. Expired09/12/95

The letters patent expired on 09/12/1995: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 04/28/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Oxon Italia S.P.A., companhia italiana

IT

Inventors

M. R. (pessoa física)

Technical data

IPC Classification

C07F 7/22

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/28/1987

RPI 862

Notificação para pagamento de retribuição

#13.1

12/02/1986

RPI 841

Deferimento

#9.1

08/12/1986

RPI 825

Exigência - art. 36 da LPI

#6.1

10/29/1985

RPI 784

Exigência - art. 36 da LPI

#6.1

09/04/1984

RPI 724

Exigência - art. 36 da LPI

#6.1

01/31/1984

RPI 693

Solicitação de exame técnico

#4.1

03/08/1983

RPI 646

Carta-patente expirada

#21.1

09/12/1995

RPI 1293

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