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Official data from INPI

PROCESSO PARA A RETIRADA DE NITRATO DE AMONIO DE SOLUCOES AQUOSAS

ConcedidaInvention Patent

Application data

Number

PI8108266

Type

Invention Patent

Filing

12/19/1980

Publication

10/26/1982

Progress at the INPI

  1. Filing12/19/80
  2. Publication10/26/82
  3. Examination04/05/83
  4. Allowance02/04/86
  5. Grant08/26/86
  6. Terminated02/04/92

The patent was granted on 08/26/1986 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 08/26/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

KERNFORSCHUNGSZ KARLSRUHE [DE]

Inventors

H. M. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/26/1986

RPI 827

Notificação para pagamento de retribuição

#13.1

06/24/1986

RPI 818

Deferimento

#9.1

02/04/1986

RPI 798

Exigência - art. 36 da LPI

#6.1

12/04/1984

RPI 737

Solicitação de exame técnico

#4.1

04/05/1983

RPI 650

Publicação do pedido de patente

#3.1

10/26/1982

RPI 627

Pedido de patente depositado

#2.1

02/16/1982

RPI 591

Anuidade - prazo legal encerrado

#18.2

02/04/1992

RPI 1105

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