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Official data from INPI

SEM TITULO

Em AnáliseInvention Patent

Application data

Number

PI8006340

Type

Invention Patent

Filing

09/30/1980

Publication

-

Progress at the INPI

  1. Filing09/30/80
  2. Publication
  3. Examination05/17/83
  4. Allowance12/13/83
  5. Grant06/26/84
  6. Expired11/14/95

The letters patent expired on 11/14/1995: 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: 04/12/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

T. C. (pessoa física)

US

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Inventors

J. W. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Cessão de direito de exploração

#22.1

04/12/1988

RPI 912

Concessão da patente

#16.1

06/26/1984

RPI 714

Notificação para pagamento de retribuição

#13.1

04/10/1984

RPI 703

Deferimento

#9.1

12/13/1983

RPI 686

Solicitação de exame técnico

#4.1

05/17/1983

RPI 656

Carta-patente expirada

#21.1

11/14/1995

RPI 1302

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