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Official data from INPI

RECUPERADOR DE GASES.

ConcedidaInvention Patent

Application data

Number

PI8100826

Type

Invention Patent

Filing

02/11/1981

Publication

10/13/1982

Progress at the INPI

  1. Filing02/11/81
  2. Publication10/13/82
  3. Examination01/18/83
  4. Allowance03/20/84
  5. Grant10/30/84
  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: 10/30/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. B. (pessoa física)

RS, BR

D. B. (pessoa física)

Regal - Recuperadora de Gases Ltda e Dante Bellini.

RS, BR

Inventors

B. O. (pessoa física)

B. D. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/30/1984

RPI 732

Notificação para pagamento de retribuição

#13.1

07/17/1984

RPI 717

Deferimento

#9.1

03/20/1984

RPI 700

Exigência - art. 36 da LPI

#6.1

08/23/1983

RPI 670

Solicitação de exame técnico

#4.1

01/18/1983

RPI 639

Publicação do pedido de patente

#3.1

10/13/1982

RPI 625

Carta-patente expirada

#21.1

03/19/1996

RPI 1320

Pedido de licença compulsória

#20.1

06/14/1994

RPI 1228

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