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Official data from INPI

ROTOR DE HILICOPTERO

ConcedidaInvention Patent

Application data

Number

PI7905658

Type

Invention Patent

Filing

09/11/1978

Publication

-

Progress at the INPI

  1. Filing09/11/78
  2. Publication
  3. Examination06/29/82
  4. Allowance10/25/83
  5. Grant06/26/84
  6. Expired04/25/95

The letters patent expired on 04/25/1995: 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: 06/26/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

TEXTRON INC

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Inventors

C. C. (pessoa física)

C. W. (pessoa física)

S. D. (pessoa física)

S. W. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/26/1984

RPI 714

Notificação para pagamento de retribuição

#13.1

02/07/1984

RPI 694

Deferimento

#9.1

10/25/1983

RPI 679

Exigência - art. 36 da LPI

#6.1

02/22/1983

RPI 644

Solicitação de exame técnico

#4.1

06/29/1982

RPI 610

Carta-patente expirada

#21.1

04/25/1995

RPI 1273

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