(11) 98705-3426
TrademarkIQ iconTrademarkIQ
Back to search
Official data from INPI

MECANISMO DIFERENCIAL

ConcedidaInvention Patent

Application data

Number

PI8501986

Type

Invention Patent

Filing

04/26/1985

Publication

11/25/1986

Progress at the INPI

  1. Filing04/26/85
  2. Publication11/25/86
  3. Examination03/10/87
  4. Allowance12/29/87
  5. Grant07/26/88
  6. Terminated07/25/95

The patent was granted on 07/26/1988 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 07/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Tractech,Inc.

US

Inventors

C. A. (pessoa física)

E. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/26/1988

RPI 927

Notificação para pagamento de retribuição

#13.1

05/10/1988

RPI 916

Deferimento

#9.1

12/29/1987

RPI 897

Solicitação de exame técnico

#4.1

03/10/1987

RPI 855

Publicação do pedido de patente

#3.1

11/25/1986

RPI 840

Pedido de patente depositado

#2.1

07/02/1985

RPI 767

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. A classificação IPC anterior era F16H 35/04.

03/27/2018

RPI 2464

Anuidade - prazo legal encerrado

#18.2

07/25/1995

RPI 1286

Patent monitoring

Track this patent in real time.

Receive alerts on INPI events, decisions, and expiry dates for your portfolio.