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Official data from INPI

NITRETO DE BORO CUBICO E PROCESSO DE CONVERSAO DIRETA PARA PRODUCAO DO MESMO,A PARTIR DE NETRETO DE BORO PIROLITICO

ConcedidaInvention Patent

Application data

Number

PI7804310

Type

Invention Patent

Filing

07/01/1977

Publication

-

Progress at the INPI

  1. Filing07/01/77
  2. Publication
  3. Examination
  4. Allowance02/12/86
  5. Grant09/30/86
  6. Expired11/30/93

The letters patent expired on 11/30/1993: 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: 09/30/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

G. E. (pessoa física)

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Inventors

C. F. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/30/1986

RPI 832

Notificação para pagamento de retribuição

#13.1

06/24/1986

RPI 818

Deferimento

#9.1

02/12/1986

RPI 799

Exigência - art. 36 da LPI

#6.1

12/18/1984

RPI 739

Exigência - art. 36 da LPI

#6.1

01/31/1984

RPI 693

Exigência - art. 36 da LPI

#6.1

08/16/1983

RPI 669

Exigência - art. 36 da LPI

#6.1

08/17/1982

RPI 617

6.2

12/29/1981

RPI 584

Carta-patente expirada

#21.1

11/30/1993

RPI 1200

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