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Official data from INPI

DISPOSITIVO ROTOR DE ENGRENAGENS

PublicadaInvention Patent

Application data

Number

PI8804702

Type

Invention Patent

Filing

09/13/1988

Publication

04/18/1989

Progress at the INPI

  1. Filing09/13/88
  2. Publication04/18/89
  3. Examination02/13/91
  4. Allowance09/15/92
  5. Grant04/27/93
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 04/18/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Hollis N White, Jr

US

Inventors

H. J. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

098,362 · 09/18/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

04/18/1989

RPI 965

Pedido de patente depositado

#2.1

01/31/1989

RPI 954

Carta-patente expirada

#21.1

Patente extinta em 13/09/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

04/27/1993

RPI 1169

Notificação para pagamento de retribuição

#13.1

02/02/1993

RPI 1157

Deferimento

#9.1

09/15/1992

RPI 1137

Exigência - art. 36 da LPI

#6.1

12/17/1991

RPI 1098

Solicitação de exame técnico

#4.1

02/13/1991

RPI 1054

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