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Official data from INPI

APERFEICOAMENTO EM PROCESSO E EM APARELHO PARA PARTIR CHAPAS DE VIDRO

ConcedidaInvention Patent

Application data

Number

PI7706275

Type

Invention Patent

Filing

09/21/1976

Publication

-

Progress at the INPI

  1. Filing09/21/76
  2. Publication
  3. Examination
  4. Allowance09/08/82
  5. Grant03/29/83
  6. Expired07/06/93

The letters patent expired on 07/06/1993: 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: 03/29/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PILKINGTON BROTHERS LTD

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Inventors

H. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/29/1983

RPI 649

Notificação para pagamento de retribuição

#13.1

01/11/1983

RPI 638

Deferimento

#9.1

09/08/1982

RPI 620

Exigência - art. 36 da LPI

#6.1

01/19/1982

RPI 587

Carta-patente expirada

#21.1

07/06/1993

RPI 1179

20.4

07/02/1991

RPI 1074

20.4

06/25/1991

RPI 1073

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