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Official data from INPI

VIDRO FOTOCROMÁTICO TRANSPARENTE.

DeferidaInvention Patent

Application data

Number

PI8006459

Type

Invention Patent

Filing

10/08/1980

Publication

-

Progress at the INPI

  1. Filing10/08/80
  2. Publication
  3. Examination04/06/82
  4. Allowance10/10/89
  5. Grant04/24/90
  6. Expired11/14/95

The letters patent expired on 11/14/1995: 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: 10/10/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. W. (pessoa física)

US

See this company's full portfolio

Inventors

G. H. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

113.797 · 01/21/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

10/10/1989

RPI 990

Exigência - art. 36 da LPI

#6.1

11/29/1988

RPI 945

Exigência - art. 36 da LPI

#6.1

03/08/1988

RPI 907

Exigência - art. 36 da LPI

#6.1

01/17/1984

RPI 691

Solicitação de exame técnico

#4.1

04/06/1982

RPI 598

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. A classificação IPC anterior era C03C 3/26.

03/20/2018

RPI 2463

Carta-patente expirada

#21.1

11/14/1995

RPI 1302

Concessão da patente

#16.1

04/24/1990

RPI 1015

Notificação para pagamento de retribuição

#13.1

02/06/1990

RPI 1005

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