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Official data from INPI

VIDRO FOTOCRONICO TRANSPARENTE E COMPOSICAO DE VIDRO

Concessão AnuladaInvention Patent

Application data

Number

PI7901630

Type

Invention Patent

Filing

03/17/1978

Publication

-

Progress at the INPI

  1. Filing03/17/78
  2. Publication
  3. Examination
  4. Allowance03/01/83
  5. Grant09/27/83
  6. Expired06/21/94

The letters patent expired on 06/21/1994: 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: 12/13/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. W. (pessoa física)

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Inventors

H. G. (pessoa física)

M. D. (pessoa física)

S. T. (pessoa física)

S. D. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

16.3

12/13/1983

RPI 686

Concessão da patente

#16.1

09/27/1983

RPI 675

Notificação para pagamento de retribuição

#13.1

06/21/1983

RPI 661

Deferimento

#9.1

03/01/1983

RPI 645

Exigência - art. 36 da LPI

#6.1

05/04/1982

RPI 602

Carta-patente expirada

#21.1

06/21/1994

RPI 1229

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