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Official data from INPI

PROCESSO DE DESIDROHALOGENACAO CATALITICA

ConcedidaInvention Patent

Application data

Number

PI8301299

Type

Invention Patent

Filing

03/11/1983

Publication

11/22/1983

Progress at the INPI

  1. Filing03/11/83
  2. Publication11/22/83
  3. Examination04/08/86
  4. Allowance09/13/88
  5. Grant07/25/89
  6. Terminated04/02/96

The patent was granted on 07/25/1989 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: 07/25/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemcial Company

US

See this company's full portfolio

Inventors

D. W. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/25/1989

RPI 979

Notificação para pagamento de retribuição

#13.1

01/03/1989

RPI 950

Deferimento

#9.1

09/13/1988

RPI 934

Exigência - art. 36 da LPI

#6.1

04/05/1988

RPI 911

Solicitação de exame técnico

#4.1

04/08/1986

RPI 807

Publicação do pedido de patente

#3.1

11/22/1983

RPI 683

Pedido de patente depositado

#2.1

05/03/1983

RPI 654

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: C07C 17/34; C07C 1/30; C07C 11/02; C07C 17/00; C07C 17/25; C07C 21/04; C07C 67/00.

03/27/2018

RPI 2464

Anuidade - prazo legal encerrado

#18.2

04/02/1996

RPI 1322

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