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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8101987

Type

Invention Patent

Filing

04/02/1981

Publication

10/13/1981

Progress at the INPI

  1. Filing04/02/81
  2. Publication10/13/81
  3. Examination12/06/83
  4. Allowance01/02/85
  5. Grant06/25/85
  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.

Talk to a specialist

Latest action published by the INPI: 06/25/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Kelsey-Hayes Company

US

See this company's full portfolio

Inventors

S. G. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/25/1985

RPI 766

Notificação para pagamento de retribuição

#13.1

04/23/1985

RPI 757

Deferimento

#9.1

01/02/1985

RPI 741

Exigência - art. 36 da LPI

#6.1

07/17/1984

RPI 717

Solicitação de exame técnico

#4.1

12/06/1983

RPI 685

Republicação - classificação IPC

#15.11

08/23/1983

RPI 670

Publicação do pedido de patente

#3.1

10/13/1981

RPI 573

Carta-patente expirada

#21.1

10/01/1996

RPI 1348

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