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Official data from INPI

COMPOSICAO CURAVEL

Em AnáliseInvention Patent

Application data

Number

PI7703469

Type

Invention Patent

Filing

06/02/1976

Publication

-

Progress at the INPI

  1. Filing06/02/76
  2. Publication
  3. Examination
  4. Allowance08/24/82
  5. Grant03/29/83
  6. Expired07/06/93

The letters patent expired on 07/06/1993: 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: 08/19/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

TORAY SILICONE CO

See this company's full portfolio

Inventors

M. K. (pessoa física)

Y. M. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Cessão de direito de exploração

#22.1

08/19/1986

RPI 826

Concessão da patente

#16.1

03/29/1983

RPI 649

Notificação para pagamento de retribuição

#13.1

01/11/1983

RPI 638

Deferimento

#9.1

08/24/1982

RPI 618

15.0

02/09/1982

RPI 590

Exigência - art. 36 da LPI

#6.1

01/05/1982

RPI 585

Carta-patente expirada

#21.1

07/06/1993

RPI 1179

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