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Official data from INPI

APARELHO E PROCESSO PARA POR EM ORDEM OU ARRUMAR FOLHAS

Concessão AnuladaInvention Patent

Application data

Number

PI7901029

Type

Invention Patent

Filing

02/20/1978

Publication

-

Progress at the INPI

  1. Filing02/20/78
  2. Publication
  3. Examination
  4. Allowance10/18/83
  5. Grant04/24/84
  6. Expired05/31/94

The letters patent expired on 05/31/1994: 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: 07/24/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PILKINGTON BROTHERS LTD

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Inventors

B. G. (pessoa física)

H. J. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

16.3

07/24/1984

RPI 718

Concessão da patente

#16.1

04/24/1984

RPI 705

Notificação para pagamento de retribuição

#13.1

01/31/1984

RPI 693

Deferimento

#9.1

10/18/1983

RPI 678

Exigência - art. 36 da LPI

#6.1

10/13/1982

RPI 625

6.2

02/09/1982

RPI 590

Carta-patente expirada

#21.1

05/31/1994

RPI 1226

20.4

03/05/1991

RPI 1057

20.4

02/26/1991

RPI 1056

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