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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8104788

Type

Invention Patent

Filing

07/24/1981

Publication

04/13/1982

Progress at the INPI

  1. Filing07/24/81
  2. Publication04/13/82
  3. Examination06/12/84
  4. Allowance07/09/85
  5. Grant12/31/85
  6. Expired11/12/96

The letters patent expired on 11/12/1996: 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: 12/31/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. C. (pessoa física)

JP

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Inventors

S. T. (pessoa física)

T. M. (pessoa física)

W. N. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/31/1985

RPI 793

Notificação para pagamento de retribuição

#13.1

11/12/1985

RPI 786

Deferimento

#9.1

07/09/1985

RPI 768

Republicação - classificação IPC

#15.11

04/30/1985

RPI 758

Exigência - art. 36 da LPI

#6.1

12/26/1984

RPI 740

Solicitação de exame técnico

#4.1

06/12/1984

RPI 712

Publicação do pedido de patente

#3.1

04/13/1982

RPI 599

Carta-patente expirada

#21.1

11/12/1996

RPI 1354

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