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Official data from INPI

SENSOR E TRANSDUTOR DE CARGA PARA TREM DE ATERRISSAGEM

Arquivada/ExtintaInvention PatentPCT · US1987000936

Application data

Number

PI8707733

Type

Invention Patent

Filing

04/29/1987

Publication

10/03/1989

PCT

US1987000936

Progress at the INPI

  1. Filing04/29/87
  2. Publication10/03/89
  3. Examination02/13/90
  4. Allowance09/17/91
  5. Grant09/29/92
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 10/03/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Bell Helicopter Textron Inc.

US

See this company's full portfolio

Inventors

B. D. (pessoa física)

US

P. D. (pessoa física)

US

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação de entrada na fase nacional - PCT

#1.3

10/03/1989

RPI 989

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. A classificação IPC anterior era B65C 25/00.

03/27/2018

RPI 2464

Carta-patente expirada

#21.1

Patente extinta em 29/04/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

09/29/1992

RPI 1139

Notificação para pagamento de retribuição

#13.1

01/21/1992

RPI 1103

Deferimento

#9.1

09/17/1991

RPI 1085

Solicitação de exame técnico

#4.1

02/13/1990

RPI 1006

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