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Official data from INPI

SEM TITULO

ConcedidaInvention Patent
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Application data

Number

PI8102577

Type

Invention Patent

Filing

04/28/1981

Publication

01/19/1982
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Progress at the INPI

  1. Filing04/28/81
  2. Publication01/19/82
  3. Examination02/07/84
  4. Allowance08/12/86
  5. Grant06/02/87
  6. Expired10/01/96

The letters patent expired on 10/01/1996: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 06/02/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

J. C. (pessoa física)

ES

Inventors

C. J. (pessoa física)

Technical data

IPC Classification

E04B 1/62E04B 2/88

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/02/1987

RPI 867

Notificação para pagamento de retribuição

#13.1

12/02/1986

RPI 841

Deferimento

#9.1

08/12/1986

RPI 825

Exigência - art. 36 da LPI

#6.1

10/08/1985

RPI 781

Republicação - classificação IPC

#15.11

05/07/1985

RPI 759

Exigência - art. 36 da LPI

#6.1

01/02/1985

RPI 741

Solicitação de exame técnico

#4.1

02/07/1984

RPI 694

Publicação do pedido de patente

#3.1

01/19/1982

RPI 587

Carta-patente expirada

#21.1

10/01/1996

RPI 1348

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