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Official data from INPI

PROCESSO DE REVESTIMENTO DE VIDRO PLANO POR DEPOSIÇÃO DE VAPOR QUÍMICO E APARELHAGEM PARA REVESTIMENTO DE VIDRO PLANO

PublicadaInvention Patent

Application data

Number

PI8804341

Type

Invention Patent

Filing

08/25/1988

Publication

04/18/1989

Progress at the INPI

  1. Filing08/25/88
  2. Publication04/18/89
  3. Examination06/19/90
  4. Allowance09/12/95
  5. Grant04/30/96
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 04/18/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Pilkington plc

GB

See this company's full portfolio

Inventors

R. B. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8720360 · 08/28/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

04/18/1989

RPI 965

Carta-patente expirada

#21.1

Patente extinta em 25/08/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

04/30/1996

RPI 1326

Deferimento

#9.1

09/12/1995

RPI 1293

Exigência - art. 36 da LPI

#6.1

02/14/1995

RPI 1263

Solicitação de exame técnico

#4.1

06/19/1990

RPI 1023

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