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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8100226

Type

Invention Patent

Filing

01/15/1981

Publication

-

Progress at the INPI

  1. Filing01/15/81
  2. Publication
  3. Examination08/09/83
  4. Allowance08/26/86
  5. Grant06/02/87
  6. Expired03/19/96

The letters patent expired on 03/19/1996: 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: 06/02/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Gould Inc.

US

See this company's full portfolio

Inventors

O. J. (pessoa física)

S. F. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/02/1987

RPI 867

Republicação - classificação IPC

#15.11

03/17/1987

RPI 856

Notificação para pagamento de retribuição

#13.1

12/09/1986

RPI 842

Deferimento

#9.1

08/26/1986

RPI 827

Exigência - art. 36 da LPI

#6.1

07/23/1985

RPI 770

Solicitação de exame técnico

#4.1

08/09/1983

RPI 668

Carta-patente expirada

#21.1

03/19/1996

RPI 1320

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