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Official data from INPI

MECANISMO DE DIFERENCIAL PARA A PROPULSAO DE UM PAR DE EIXOS COLINEARES

ConcedidaInvention Patent
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Application data

Number

PI8305364

Type

Invention Patent

Filing

05/19/1983

Publication

03/05/1985
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Progress at the INPI

  1. Filing05/19/83
  2. Publication03/05/85
  3. Examination02/03/87
  4. Allowance12/29/87
  5. Grant07/26/88
  6. Terminated02/18/92

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.

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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

B. R. (pessoa física)

D. L. (pessoa física)

Technical data

IPC Classification

F16D 23/00

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

Republicação - classificação IPC

#15.11

05/10/1988

RPI 916

Deferimento

#9.1

12/29/1987

RPI 897

Solicitação de exame técnico

#4.1

02/03/1987

RPI 850

Publicação do pedido de patente

#3.1

03/05/1985

RPI 750

Pedido de patente depositado

#2.1

12/13/1983

RPI 686

Anuidade - prazo legal encerrado

#18.2

02/18/1992

RPI 1107

Republicação - classificação IPC

#15.11

10/01/1991

RPI 1087

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