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Official data from INPI

SEM TITULO

ConcedidaInvention Patent
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Application data

Number

PI8003562

Type

Invention Patent

Filing

06/09/1980

Publication

02/09/1982
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Progress at the INPI

  1. Filing06/09/80
  2. Publication02/09/82
  3. Examination03/13/84
  4. Allowance07/09/85
  5. Grant02/04/86
  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: 02/04/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. V. (pessoa física)

FR

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Inventors

D. D. (pessoa física)

D. M. (pessoa física)

Technical data

IPC Classification

H01L 31/12

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/04/1986

RPI 798

Notificação para pagamento de retribuição

#13.1

11/12/1985

RPI 786

Deferimento

#9.1

07/09/1985

RPI 768

Republicação - classificação IPC

#15.11

12/04/1984

RPI 737

Exigência - art. 36 da LPI

#6.1

09/18/1984

RPI 726

Solicitação de exame técnico

#4.1

03/13/1984

RPI 699

Publicação do pedido de patente

#3.1

02/09/1982

RPI 590

Carta-patente expirada

#21.1

09/12/1995

RPI 1293

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SEM TITULO

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