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Official data from INPI

COMPOSIÇÃO TRANSPARENTE DE REVESTIMENTO

ConcedidaInvention Patent

Application data

Number

PI8403088

Type

Invention Patent

Filing

06/25/1984

Publication

05/28/1985

Progress at the INPI

  1. Filing06/25/84
  2. Publication05/28/85
  3. Examination05/20/86
  4. Allowance05/09/89
  5. Grant09/26/89
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

B. C. (pessoa física)

US

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Inventors

S. P. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

526,724 · 08/26/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Deferimento

#9.1

05/09/1989

RPI 968

Exigência - art. 36 da LPI

#6.1

11/16/1988

RPI 943

14.4

08/02/1988

RPI 928

Solicitação de exame técnico

#4.1

05/20/1986

RPI 813

Publicação do pedido de patente

#3.1

05/28/1985

RPI 762

Pedido de patente depositado

#2.1

08/28/1984

RPI 723

Carta-patente expirada

#21.1

Patente extinta em 25/06/99

07/08/2008

RPI 1957

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