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Official data from INPI

MAÇARICO A GÁS APERFEIÇOADO COM SISTEMA PREVENTIVO DE PRÉ-EXPLOSÃO.

ConcedidaInvention Patent

Application data

Number

PI8105778

Type

Invention Patent

Filing

09/08/1981

Publication

05/25/1982

Progress at the INPI

  1. Filing09/08/81
  2. Publication05/25/82
  3. Examination04/03/84
  4. Allowance04/09/85
  5. Grant12/31/85
  6. In force09/08/01

The patent is in force and subject to a compulsory licence request: third parties have asked for authorisation to exploit the technology.

Protection valid until:09/08/2001

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Latest action published by the INPI: 12/31/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

E. C. (pessoa física)

US

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Inventors

H. E. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Priority claims

DE

G 80 31 847 · 11/29/1980

DE

P 30 33 579.6 · 09/06/1980

US

191.132 · 09/26/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/31/1985

RPI 793

14.1

08/27/1985

RPI 775

Notificação para pagamento de retribuição

#13.1

07/30/1985

RPI 771

Republicação - classificação IPC

#15.11

04/30/1985

RPI 758

Deferimento

#9.1

04/09/1985

RPI 755

Exigência - art. 36 da LPI

#6.1

10/09/1984

RPI 729

Solicitação de exame técnico

#4.1

04/03/1984

RPI 702

Publicação do pedido de patente

#3.1

05/25/1982

RPI 605

Pedido de patente depositado

#2.1

10/27/1981

RPI 575

Pedido de licença compulsória

#20.1

03/01/1990

RPI 1007

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