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Official data from INPI

PROCESSO DE FABRICACAO DE SAIS DE GRAFITA

Em AnáliseInvention Patent
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Application data

Number

PI8000396

Type

Invention Patent

Filing

01/22/1980

Publication

-
View on INPI

Progress at the INPI

  1. Filing01/22/80
  2. Publication
  3. Examination11/23/82
  4. Allowance07/30/85
  5. Grant02/04/86
  6. Expired05/16/95

The letters patent expired on 05/16/1995: 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: 09/30/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. M. (pessoa física)

Inventors

S. M. (pessoa física)

Technical data

IPC Classification

C01B 31/04

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

09/30/1986

RPI 832

20.7

09/30/1986

RPI 832

20.7

09/23/1986

RPI 831

Concessão da patente

#16.1

02/04/1986

RPI 798

Notificação para pagamento de retribuição

#13.1

11/26/1985

RPI 788

Deferimento

#9.1

07/30/1985

RPI 771

8.1

11/20/1984

RPI 735

Exigência - art. 36 da LPI

#6.1

01/10/1984

RPI 690

Exigência - art. 36 da LPI

#6.1

05/31/1983

RPI 658

Solicitação de exame técnico

#4.1

11/23/1982

RPI 631

Carta-patente expirada

#21.1

05/16/1995

RPI 1276

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