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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8204952

Type

Invention Patent

Filing

08/24/1982

Publication

08/02/1983

Progress at the INPI

  1. Filing08/24/82
  2. Publication08/02/83
  3. Examination10/08/85
  4. Allowance09/02/86
  5. Grant04/28/87
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 04/28/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Ingersoll - Rand Company

US

See this company's full portfolio

Inventors

J. B. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

296.035 · 08/25/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/28/1987

RPI 862

Notificação para pagamento de retribuição

#13.1

12/23/1986

RPI 844

Deferimento

#9.1

09/02/1986

RPI 828

Solicitação de exame técnico

#4.1

10/08/1985

RPI 781

Publicação do pedido de patente

#3.1

08/02/1983

RPI 667

Pedido de patente depositado

#2.1

10/13/1982

RPI 625

Carta-patente expirada

#21.1

Patente extinta em 24/08/97

07/01/2008

RPI 1956

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