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Official data from INPI

PROCESSO PARA PRODUZIR UMA MISTURA ESCOÁVEL DE L ÍQUIDO-SÓLIDO.

Em AnáliseInvention Patent

Application data

Number

PI8104215

Type

Invention Patent

Filing

07/02/1981

Publication

03/23/1982

Progress at the INPI

  1. Filing07/02/81
  2. Publication03/23/82
  3. Examination07/06/82
  4. Allowance01/29/85
  5. Grant08/27/85
  6. Terminated06/21/88

The patent was granted on 08/27/1985 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 06/21/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

AIR PRODUCTS AND CHEMICALS, INC.

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Inventors

K. D. (pessoa física)

Technical data

IPC Classification

Priority claims

US

165,815 · 07/03/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/21/1988

RPI 922

Concessão da patente

#16.1

08/27/1985

RPI 775

Notificação para pagamento de retribuição

#13.1

05/21/1985

RPI 761

Republicação - classificação IPC

#15.11

05/07/1985

RPI 759

Deferimento

#9.1

01/29/1985

RPI 745

Solicitação de exame técnico

#4.1

07/06/1982

RPI 611

Publicação do pedido de patente

#3.1

03/23/1982

RPI 596

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