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Official data from INPI

APARELHO PARA FORMACAO DE CURVATURAS ANGULARES RELATIVAMENTE AGUDAS EM FOLHAS DE VIDRO

ConcedidaInvention Patent

Application data

Number

PI7707899

Type

Invention Patent

Filing

04/06/1977

Publication

-

Progress at the INPI

  1. Filing04/06/77
  2. Publication
  3. Examination
  4. Allowance07/12/83
  5. Grant01/31/84
  6. Terminated01/21/92

The patent was granted on 01/31/1984 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 01/31/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

LIBBEY OWENS FORD CO

See this company's full portfolio

Inventors

O. W. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

01/31/1984

RPI 693

Notificação para pagamento de retribuição

#13.1

11/08/1983

RPI 681

Deferimento

#9.1

07/12/1983

RPI 664

8.1

05/24/1983

RPI 657

Exigência - art. 36 da LPI

#6.1

07/20/1982

RPI 613

Exigência - art. 36 da LPI

#6.1

01/26/1982

RPI 588

Anuidade - prazo legal encerrado

#18.2

01/21/1992

RPI 1103

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