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Official data from INPI

PROCESSOS PARA A PURIFICAÇÃO DE UM CLOROSSILANO.

Em ExigênciaInvention Patent

Application data

Number

PI8305225

Type

Invention Patent

Filing

09/23/1983

Publication

05/02/1984

Progress at the INPI

  1. Filing09/23/83
  2. Publication05/02/84
  3. Examination07/08/86
  4. Allowance03/01/90
  5. Grant08/28/90
  6. Terminated04/23/96

The patent was granted on 08/28/1990 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: 08/08/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

D. C. (pessoa física)

US

See this company's full portfolio

Inventors

R. D. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

427.082 · 09/29/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

08/08/1989

RPI 981

Exigência - art. 36 da LPI

#6.1

01/03/1989

RPI 950

Exigência - art. 36 da LPI

#6.1

08/19/1986

RPI 826

Solicitação de exame técnico

#4.1

07/08/1986

RPI 820

Publicação do pedido de patente

#3.1

05/02/1984

RPI 706

Pedido de patente depositado

#2.1

11/29/1983

RPI 684

Anuidade - prazo legal encerrado

#18.2

04/23/1996

RPI 1325

Republicação - classificação IPC

#15.11

03/05/1991

RPI 1057

Concessão da patente

#16.1

08/28/1990

RPI 1030

Notificação para pagamento de retribuição

#13.1

06/19/1990

RPI 1023

Deferimento

#9.1

03/01/1990

RPI 1007

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